RedBull - Honda before Monaco and winning races with Verstappen and Ricciardo.
Toro Rosso getting the Renault engines RB is contracted to and for 2019 gets Honda engines, too.
Toro Rosso in the top 6 in the first 5 races thanks to a monsterous Honda engine.
Anyway, that's rather unlikely so let's see what is more likely.
And if we're looking at 'likely things'
then Gasly 100% in Toro Rosso for 2018.
It's that other seat which is to be filled.
And i'm rather confident it won't be filled by Kvyat, nor Buemi, nor Vergne.
Also, i'm rather confident Kubica won't drive there, nor will Palmer, nor Ericsson, Massa, or Wehrlein.
So that really slims down the possibilities.
Who will have a superlicense or is eligable for a superlicense next year? is there a website or a page dedicated to that information?