He's got a 99* and a 78 this series. Other than that nothing but his current average of over 40 would be up there among the best for any English wicket keeper in an Ashes series in history. He hasn't played much over the last year but he's played more than Mark Wood, who hasn't bowled a red ball in half a year and has his own fitness issues yet came in and lit the series on fire, so it's hard to predict these things. England clearly think the old way of putting someone back in county cricket for 3 months to get into form isn't needed anymore and they've been proven right with other players.
It's the dropped catches that are the big sin, not the batting. If there was no rain and England win by a few wickets his 99* knock would be a lot more meaningful, that's not his fault. But I can certainly see the headache England have with him and Foa