I presume in Ontario, a Simcoe North byelection will be pre-empted by the general election ;-)
He is staying on as MPP, so no by-election there. Nonetheless it will be interesting to see if the PCs choose a new candidate for Barrie-Oro Medonte-Springwater or not. Probably better to drop him altogether as this will just dog them in the campaign. The federal election is in 2019 so by then the case will have gone through the courts and he can always run there although the two Barrie ridings are taken, but maybe Simcoe North will open up again as Bruce Stanton has been there since 2006 and is in his early 60s.
I wonder if Ann Hoggarth will try to switch ridings. She is nominated in Barrie - Innisfil but Barrie—Springwater—Oro-Medonte is much more winnable for the Liberals. It's assumed she didn't choose the latter because the leader of the PCs was the candidate there (in Brown), but with that changed, I could see her switching over.