2) Yes and no. If a case is made well enough people will throw money at just about anything whether you have a good reputation or none at all. Like if I wasn't broke I would have supported Planetary Annihilation, simply because the game looked cool... never heard of Uber Entertainment or anyone that worked there before I saw that trailer. But you are right about the fact that we would need a dedicated development team.
While Uber is a newer company, the guys working there are not new to the industry; they have credentials, having previously worked on TA, SupCom 1, etc. People are skeptical when the guys behind the Kickstarter don't have a reputation, not only for the reason of the quality of the resulting product but also whether they can actually manage the Kickstarted funds properly or not; clusterf***s of mismanaged money have happened to Kickstarters before because the people behind them didn't know what they were doing. Properly budgeting a game, not to mention tier rewards for backers on top of that, is by no means trivial, especially when Kickstarter funds are relatively limited (as compared to publisher funding) as they are.
And before you ask, don't even try asking publishers. You'd have a hard time finding one that's interested in an RTS game at all, let alone one made with an IP that was used to make games that didn't sell terribly well. There is a reason why the market is flooded with COD clones and other BS, and that is because publishers are only interested in games that are "likely" to become blockbusters, which RTS games usually are not, Starcraft being a notable exception. This is the whole reason why developers are turning to Kickstarter instead.
4) Vivendi Universal probably wouldn't care too much as it is a long dead series. However, they may be interested in partnering with OPU development team if they saw an interest thru kickstarter.
Wrong. Especially because there'd be actual money involved. Also, even before considering getting the money to acquire the rights to Outpost 3, good luck finding who to go to get them, because they are somewhere in limbo right now. All we know is Stellarwave got the rights to produce OP3, then they got bought out by another company, which got bought out by yet another company, and nobody knows what happened with the rights after that. If you want the rights, you have no choice but to track down whoever ended up with them, which isn't going to happen (if it were possible, somebody here would have figured it out years ago). This is similar to an "orphaned work" situation, which is a massive flaw in copyright law. The best you can realistically do is to make a "Not Outpost 3" and avoid the Outpost IP altogether.