In the next election it seems the FvD will become much bigger, just wondering whether the PVV and FvD have some sort of "understanding" as they have similar views with the exception of the economics.
Also is the relationship cordial with Wilders and Baudet? Both of them seem to have big personalities, especially compared to other party leaders.
I don't think economics will be a dealbreaker anyway. Baudet barely talks about it and lately he voted for a motion that encouraged the government to scrap the VAT increase on food, books and labour intensive services paid for by scrapping business tax cuts.
I'm not sure on the exact details of the relationship between Baudet and Wilders. But Wilders doesn't allow anyone else to become PVV member and he also keeps an extremely strong hold on the PVV, Wilders is the boss and almost nobody else holds any form of power within the PVV (maybe Bosma or Agema but that's it). He claims to do this because he's afraid of LPF-like scandals (when Fortuyn died 70% of the LPF MP's turned out to be incompetent and downright dangerous criminals lol), but a lot of people think he also does this because he's afraid of any potential internal competitor. This probably tells us how he looks at potential competitors
.
The FvD's party structure also is a lot different from the PVV's party structure. FvD is a very open party, you can join the party and they hold a lot of events (usually attended by either Baudet himself or Hiddema). There are a lot of internal debates. This is a huge contrast to the PVV's extremely closed structure.
I also doubt whether an understanding will be of much use. The PVV will never be in government again after the 2012 budget talks and their radicalization in the years after it. And I don't think the FvD is particularly interested in governing either. Personally I would be very interested in a VVD-CDA-D66-FvD coalition but such a coalition would never work because of the differences between FvD and D66 on Europe and because of the FvD's attacks on the "party cartel" in general. FvD might (and this is a very small chance) work with VVD, CDA and the smaller Christian parties but these parties definitely won't have a majority. For a majority you'll either need to add D66 (won't work with FvD) or PVV (VVD/CDA never want to work with Wilders again). The only way I could see FvD entering government is if they become the biggest party, but despite the Baudet hype I doubt they'll ever become the biggest party. I suspect Wilders will remain in politics for quite a while and Wilders has a core base that the FvD probably needs to win in order to become the biggest party but won't vote for anyone other than Wilders.
The closest thing the FvD can come to governing is the other parties implementing their proposal of a nonpartisan technocratic so-called "business government" (zakenkabinet in Dutch, idk what the right translation is) which will consist out of nonpartisan experts who'll seek a different majority on each issue (pretty ironic that a right-wing populist is suggesting this as I suspect a government like this will basically implement D66's election manifesto minus their leftish stances on immigration).
If you mean understanding as in not attacking each other, I'm not sure whether there is need for an understanding. Baudet's main talking point is breaking the "party cartel" (the parties which have been ruling the Netherlands since forever, basically VVD-CDA-PvdA and to a lesser extent D66 and GL), and the PVV definitely isn't part of that party cartel. Wilders probably will start attacking Baudet once FvD comes close to the PVV in terms of seats (and maybe Baudet will start attacking Wilders for being in eternal opposition once Baudet sees actual possibilities of winning the elections).
Another interesting thing to note is that FvD will run together with Leefbaar Rotterdam (local right-wing party in Rotterdam) in the Rotterdam municipal elections instead of running separately or even running with the PVV. They announced this not long after the PVV announced they would run against Leefbaar in the Rotterdam municipal elections (which is really, really, realy stupid as splitting the right is the best way to ensure the right won't be in government again in Rotterdam, even though they did a decent job at governing). FvD and Baudet see themselves as the true heirs of Fortuyn (instead of Wilders), and whatever is left of the Fortuyn loyalists seems to agree with Baudet and the FvD.