While it is true that Tony and Tom haven’t been streaming recently, i doubt they aren’t contributing to the development of SH.
Riot might seem like a big company, and it probably is, but they only have one game in their arsenal, L.O.L
StoneHearth offers immense potential for competitive(or rather, tactical) multiplayer, and i don’t think they don’t have that in mind, so i doubt they want to lose on a chance to try a different typr of game(and also one way i hope Riot doesn’t screw up StoneHearth)
I’d expect Tom and Tony to still be quite busy after the acquisition, so i’m not sertain, but optimistic on that they are still working on the game themselvs, even if that is a little less than it use to,(and also, we can’t confirm if @Allie is capable of animating, which is a big part of the modelers job in SH)
But i’m no expert, so don’t take my words as facts