It's Here! There's 28 tracks in total (including two bonus tracks), with ample looping and tailored arrangements of the dynamic tracks. It's free/pay what you want (if you decide to pay, it'll go to lavendersiren's paypal) so there's little reason not to download it.
(Make sure you've played the game at least once before listening to the soundtrack)
As for the progress on the DX version, that is currently waiting on our programmer, who has not been very active as of late. The other two of us are busy with our other projects as well this month so it may take a while for any significant progress to be made here.