Well, no offense, but I've been around a little longer in more scenarios than just online forums. I've spoken to AFOLs from across the country and some from around the world, and while there is a demand for classic space, it doesn't predominate the wants of the majority of older AFOLs. More often than not classic space is something nice that should come back, but it's very low on the list of priorities presented. Of course if you ask the question "classic space or no" most AFOLs are going to say yes; it's like asking people if they would like the opportunity for free money, you'll only find a few people who don't agree with the concept.
And I'm not surprised. You've asked online, where the more vocal AFOLs prefer to hang out. However in-person even among classic space die-hard fans, the answers are usually indecisive. Classic space contains a rare quality thanks to the way sets were designed back then, and the sets and pieces are indispensable to the collectors and MOCists. Bringing it back would destroy that connection in the minds of some, and they prefer classic space be left in the holy grail it now sits in.
But this is sidetracking from the main discussion a little. You're asking about the preference between licensed and original themes. I really don't care. Licensed themes appeal to me a little more because I don't care for how LEGO handles stories recently. Original themes are also appealing due to their wider range of new part molds. At the end of the day if the theme is acceptable and the sets are good I'm supportive of it.
But I can promise you we may never mention licensed themes again if we keep hearing about it on the boards. It's getting to be just a little annoying.