Hardware issues
For me waiting to upgrade into Alpha or not is very much also question about preferred system requirements for full settings (and minimum for alpha).
I have 3rd generation i5-3570K, 3,4 GHz, and inside it Intel HD Graphics 4000 HD with P8Z77-C LK motherboard (claims to boost my integrated GPU by 60%, but I dunno).
This will probably be first game my GPU cant handle (would guess, f.ex. textures?), so would be nice to know what will be minimum GPU card I should order to get all out of (finished) product preferably 2 weeks before alpha.
If requirements for best performance are at highest lvl GPU´s, worth hundreds, I wonder if it would be technically possible to get integrated GPU´s do some work a bit more modest real GPU card(s) do not have to.