Mmmmm, lookin' forward to seeing what they've cooked up. Granted, it's SOE we're talking about, so I'm keeping my opinions in check until I see the final product (aka cautious optimism).
Yes, PlanetSide was way ahead of it's time. It's the only game to date, IMHO, that managed to successfully mimic the massive scope of a properly run military operation in the form of a game. The game's shortcomings included a shortage of interesting objectives, repetitive gameplay and limited selection of weapons. On the flipside, the game was technically competent (a first for SOE at the time), had fantastic music that I still hum-out to this day, and a neat scoring and XP system. Considering all the broken promises for MMOFPS games lately, here's hoping SOE finally gets it right.