Speaking to BBC Scotland, Gregor said: "He sees a lot of specialists every week and they've been really pleased by how he's progressing.
"He was in yesterday and he's taking things step-by-step.
"We don't expect Finn to be back in training for another few weeks.
"He's in great spirits, we expect him to make a full recovery and we'll see him back playing sometime next season.
"We've got doctors who've been involved in sport for a number of years who haven't seen such a clash of heads.
"But it's testament to the work of our staff, those of Connacht and the medical staff in Ireland who helped us out for the first few days, that he has made a full recovery.
"I'm sure he'll be itching to play again very soon."