Just as a note... It's been suggested many times in the past, so I wouldn't get your hopes up on it being added really soon. Maybe it will, but it appears to be either low down on Khaled's to-do list or he has decided not to do it at all.
FOR can be useful, but it really isn't that much different to use a WHILE loop. Yes, it's more lines, but the end result in most situations will be the same and I have a feeling that it wouldn't even be more efficient because it will still be executing the same commands.
I don't much care either way. It's so common in programming and scripting languages that I agree it should also be here, but it's so easy to do the same thing with WHILE that I don't think there's any rush to get it added either.