I don't know about the 1/48, but here're some info on the upcoming 1A:
http://www.1999.co.jp/eng/10073552
Should be out at the end of this month, hopefully earlier The 1S was supposed to be relased at the end of July but ended up being released July 19 I hope the smae miracle happens for the 1A. Ditto for the 1J which is speculated to be released by the end of October.
It's the DYRL version (based on the color stripes) and it'll come out with both Strike and Super parts (which is a bonus considering that the 1A was only shown to have the Super Parts in the movie), hence the FP scheme is DYRL.
As with the current 1S, it's also speculated that the 1A will also have a non-FP package release, though I'd rather get the one with the FPs.