The first expansion package for the new Roland FA has popped up on Roland's AXIAL website today. It is a slightly reduced version of the SRX-08 (not my area of interest, just vintage techno beat samples etc.). But it confirms that other expansions based on SRX boards will be available in future - and indeed for free. (Remember However, only 2 of these waveform expansions can be loaded into a FA.)

http://axial.roland.com