I'm pretty sure they'll bring back Dana for Ghostbusters 3, hell Sigourney wants to come back, if any of those interviews are a clue.
I'd just like to see her in a different role this time. She's had to play (more or less) the “damsel in distress” TWICE now, and Peter's had to “win her back” once already. I'd like to think that if she were to appear in a (hopefully) third movie, that she and venkman would still be together, if not married. And hopefully she won't be the source or victim of the big bad problem like before. She CAN'T be THAT unlucky. :p
But then (as I'm sure many studio execs would probably wonder) how would she be able to still be an actual character in Ghostbusters 3 if not as the person to be saved/helped?? If regulated to Venkman's wife, at home or her day job, would put her in danger of being made solely a background character. She could be like Janine, and hang/help out at the firehouse.
or hell… make her a ghostbuster!!! Then they'll be able to keep an eye on her and any possible hellbeasts lookin' to cause her trouble!! XD
Any thoughts from you, my fellow geeks?