Yeah, this is entirely motivated by profit (as is everything Blizzard does these days). It's clear that they had plans for the remaster, and then all those plans were scaled way back to cut costs. This thing is just being dumped out to recoup any money they already spent on it.
Wow. The old Blizzard would have delayed or cancelled this. Or, would worked on a new RTS title instead of remaking an old one on the cheap.
In the same vein, I don't expect Blizzard to do Mac versions of most of their games anymore. There's not enough money in it.
I don't think there are any RTS games in active development.
Well, it's not an either/or thing. The art for this was outsourced (same company that did the SC1 remaster) and they have a separate team that works on the programming for these remasters. I hope the SC2 team is actually working on WC4 or SC3.