Looks like concepts from when PS2 was still called "Next" and was really just a re-skinned PS1 that moved to F2P. At some point about a year ago they realized what they had was something that could put SOE back on the MMO map and started doing the re-imagined sequel thing instead of the re-skinned PS1 thing.
Can see it in the models too. Look how the demo we saw back in July with TR and NC has changed substantially. The Cycler now looks nothing like it did in the July demo.
The Bases in the concept video look too small and cramped, though they did look like they would be interesting combat zones. The courtyard walls served a purpose for vehicles as a safe haven and as a staging area for outfits. They removed most of the courtyard area in the concept videos which looked good from an artistic perspective but from a gameplay perspective would have been poor design IMO.
That's why I hope they go back to a courtyard design in PS2 that has some ability to move around within the base as a staging area, or as a safe haven for repair when the fight gets close to the base. Those were important aspects of base design in PS1 that should make a return in PS2.
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