I will revise my prediction down to 20 for now. But I could see it as few as 6 seats or as much as 42. The large range is due to so much uncertainly in recruitment, polarization and how partisan people have become compared to 2006.
It is not even out of question it will be a President Pence.
This. I voted 10-25. I suspect that due to gerrymandering the Democrats will fall short.
BTW to the OP, can you make the voting choices just a tad closer together? "10-25"? That's a massive difference between "Democrats disappointed by limited gains, flip less than a dozen seats", and "Democrats re-take the House! What next for the Trump (or Pence) White House?". It doesn't even force one to answer the penultimate question of who'll be in charge come 2019. (rant off).
Yeah I should have done like 10-18, 19-23, and 24-30.
Though I'm somewhat worried that people are starting with the notion that Democrats will (or won't) win a majority and then are working back from there, which isn't how Congressional elections work.