No one on the team will be working on the new game, so, they might as well call the game something else, it will have nothing to do with the original classics.
It makes a huge difference monetarily for Strategy First to call the game something else other than Jagged Alliance. For instance, the amount of money SFI gets per copy sold is much lower for a 3rd party product (like COPS 2170 or Etherlords) than for one of it's internally developed licenses (Disciples) where most of the proceeds are kept (minus distribution and return fees, roughly 20-30%). Also, for it's own titles SFI is able to pocket money from international deals or in this case, give over rights to certain territiories to another publisher and consider that as payment for the development costs. That's pretty much the deal going on with Mistland and another publisher. That's also the reason Misland is involved with Disciples 3, but I won't go into that story just yet. Anybody who's followed SFI's publishing practices over the last few years, will notice the strong pattern of repackaging old games as Gold Editions and later bundling the Gold Editions together and selling them as 6-packs for 20 bucks. Well for internally developed products or owned IP's SFI is able to "legally" keep the money from those products. I say legally, because SFI has a record of keeping all the cash for 3rd party developed titles and getting sued after, but that's a whole other story.
Now that SilverStar recently purchased SFI, I suspect things are likely to get worse for the consumer.