I've been reading about this price drop on Rolandclan.com, too. It was interpreted as a sign of an "Integra-8", but I don't expect anything in that direction. There is no price drop in Europe. In contrast, it has even got a few euros more expensive. Probably also a matter of exchange rates (as far as I know, most manufacturers calculate prices based on US$).

I dont think there will ever be an Integra 8.... as the integra 7 holds everything Roland created in a long time.....

Although the number of sounds is vast of course, there are quite many sounds NOT included in the Integra:
- most of the waveforms that were new in the Fantom X are not part of the Integra (the SRX library and the older XV PCM and even the PCM part of the SN-Synth don't contain most of them)
- some arranger sounds (e.g. saxophones) obviously developed by Roland Europe are not in the Integra.
As a consequence for example, my older SonicCell module has better pipe organs than the Integra. But of course, in most cases you don't miss the lacking Fantom X sounds, as SN-A and SRX are usually the better ones.
What's more important, and that really bothers many users, are three restrictions:
- only 4 SRX boards can be used simultaneously, and you can't load SRX boards automatically when changing to another studio set (registration).
- the reverb is of bad quality
- there are only 64 storage locations for studio sets (registrations), so that you have to use workarounds (like midi bank/program changes from certain ipad apps) if you have longer playlists to play live.