I never warmed to Drew--but that may have been partly because before the US version, I was obsessed with the UK original which they reran here in Canada (and had lots of the same cast, but a much more typically British, sarcastic host.) I think it's a smart choice for ABC to use the show to fill the tv "off season", and surprised it took them so long--much more appealing than bringing back Celeb Wife Swap, or worse shows.
I wonder if one time regular Charles Esten, now playing Deacon on Nashville, will make any appearances.
Maybe with Aisha they want more of a female presence? I can't stand her on The Talk (but I can't stand anyone on it), and have never seen her standup, but she's funny as a voice actress on Archer. The US version never seemed to have much luck with female panelists (off the top of my head, I can't remember any...)
A fave of mine on the UK one was Josie Lawrence, who used to do many of the song improvs. She was asked to do a number of songs in the style of Sondheim.
Josie Does Sondheim