Wenger being completely clear on Ramsey's injury situation:

From the Hull match we had Ramsey who took a big kick, he is getting slowly better. We have an uncertainty about him, he got a big knock on his fibula and we’ll see about that. Yes [ he is 50/50]. No [he hasn't trained this week], not at all. He has not been out yet. [But yes] Ramsey will play again this season.