Keep in mind that Smith doesn't have a seat in the legislature. With her relatively close margin of victory, I think she'll have a hard time pushing caucus to table a sovereignty act while she's on the outside. She's said that she will run for a by-election, but I could also see an early election at this point.
The UCP MLA in in Calgary-Elbow has resigned, a riding the NDP has a good chance to pick up and have something of a star candidate, Samir Kayande, an analyst at the Pembina Institute and a former oil and gas company executive.
Danielle Smith has already said that she won't call a byelection in this riding, but wants to run in a byelection in Southern Alberta, but not in Calgary-Elbow, even though she lived in Calgary for years and was even briefly a Calgary school trustee before getting the entire school board fired.
The tradition is for major parties to step down when a leader is seeking a seat, but in today's climate, I can't see that tradition being held, least of all by the ABNDP for Danielle Smith in a winnable riding. And I don't think Danielle Smith would risk her first act as premier being a by-election loss.
I am not aware of this tradition. All parties contested the Calgary-Lougheed by-election in 2017 when Jason Kenney sought a seat. All parties contested the Calgary-Foothills by-election in 2014 when Jim Prentice sought a seat. All parties contested the Edmonton-McClung by-election in 1998 when Nancy MacBeth sought a seat. All parties contested the Edmonton-Whitemud by-election in 1985 when Don Getty sought a seat.
That is every time in Alberta since the end of the Second World War that either the premier or the leader of the opposition has sought to enter the legislature. At none of those elections did any party represented in the legislature fail to nominate a candidate.