Also if you're responding to me, I already said that it could be other characters than Bert and Ernie. SS could even introduce 2 new characters.
I disagree. If they come up with two new gay characters, it will become about them being gay. These will be the "gay characters", but if Bert and Ernie are gay, they will continue to be good old Bert and Ernie, and they will just happen to be gay.
It would be nice if one day that issue would become irrelevant. Their orientation would be as noteworthy and important as the fact that they're bald, or have orange skin.