Ame updated the obtainable pokemon table for episode 15, so I thought I'd make a list of the changes I've noticed so far:
squirtle, totodile, turtwig, and fennekin are now available as ingame events, mudkip is no longer an ingame event
tentacool, staryu, shroomish, larvesta, vullaby, frillish, axew are limited events
drilbur is now a limited event
sneasel and lapras are now an event
gastly is no longer available
hippopotas is now available
Edits:
Togepi is now back as a limited event
Azurill is now limited event