is a Playdate Color console a someday possibility?
My guess is that the short answer is yes. Unless a company has completely pulled out of a market, it is probably constantly evaluating new business opportunities. At the same time, companies tend to try to avoid giving responses to queries like this that could be mistaken as overpromising. Someone from Panic can jump in to clarify their official position, but until and unless that happens I would assume that the answer is "possible, but unable to publicly talk about it yet". Furthermore, note that a lot depends on the how the yet to be released original Playdate goes.
LS027B7DH01A is the memory display because it is the screen used by the playdate.
I didn't know about the LS013B7DH06 and it looks really interesting. It could be the screen used in the Pebble Time (which has these really cute animations)
It seems Sharp has multiple color screen but their size are all smaller than 400 x 240.