Several German music stores have already put the new keyboards in their online shops (with unknown delivery time). The prices are:

PSR-S900: EUR 1899,-
PSR-S700: EUR 1310,-
PSR-OR S700: EUR 1330,-

Note that these prices will probably be lower when the keyboards are actually released. And the prices also include german VAT (19%).

The PSR-OR S700 is an oriental version of the PSR-S700. It has:

43 oriental sounds
168 normal and 146 oriental styles
6 oriental drum kits
Oriental scale tuning

See for yourself at:
http://www.music-town.de/ http://www.musicstore.de/

Kind regards,
Tommy