Details in full here.
Well in the time following the complaints, CBS have been attempting to distance their version from the Moffat version, and one of the major ways is who they've got to play Watson, namely, the awesome...
Yeah, Watson is going to be Joan Watson instead of John in this version, which I think'll be pretty cool. Makes me hope that the show actually does well now.
Apparently the set up for the show is that Holmes is a consultant for Scotland Yard (like in the books and the Moffat version) who is sent to New York City to go into rehab (why? We have them here I'm sure), and ends up helping out the NYPD when he's over there. Joan is a former surgeon that lost her license after one of her patient died who rents an apartment with him, or something.
So yay for Liu getting the role (though she appears to be one of the only Asian actresses in the States a lot of the time, like how Lauren Tom (also an awesome woman) is every Asian cartoon character), though I have a slight feeling that making Watson a woman is to do away with the "bromance" thing from the Moffat version.