I still don't expect much more than 400k.
I'd get a good laugh if a content starved game launching at full price and "future promise" but the type that you had to pay for, would score that much higher than Splatoon or Battlefront or Destiny. Good gameplay isn't an excuse in that scenario. All good games, and all got a shellacking for their lack of content (and two of them gave a lot more for free).
Especially not when MKX is brought in for comparison.
Edit: And since this isn't the place for it, there's a loooong discussion on how potentially troubled/thin the release and development of SFV is/was here:
http://www.neogaf.com/forum/showthread.php?t=1182902&page=19