I don't know whether having a "0" as the third digit of the model number rather than a "3" is going to be the new numbering scheme, but the "3" on the end was always a bit odd, wasn't it?
Almost all of the PSR-E models have had alter egos in the form of the YPT models-- which I believe are export models, although I don't understand why there are export versions at all-- and the YPT model numbers have always had a "0" as their third digit, with the sole exception of the YPT-255.
Plus, the 76-key PSR-EW model numbers have a "0" as their third digit.
What's odd is that since the PSR-E363, YPT-360, and PSR-EW300 were released two years ago, we were expecting the PSR-E373 this year-- but instead we get the PSR-E360, as opposed to (say) the PSR-E370.
Based on the second digit of the model number ("6" instead of "7") and the fact that the PSR-E360's specs appear to be identical to the PSR-E263's specs (with the exception of slight differences in height and depth), it looks as though the PSR-E360 might be nothing more than the PSR-E263 with a different casing, and of course with a touch- or velocity-sensitive keyboard-- which is a major improvement over the PSR-E263. Another difference is that the PA-130 AC adapter is being included with the PSR-E360, rather than having to be purchased separately, and that will also be a welcome change.
As for the MSRP of the PSR-E360, it does appear to be unusually high, especially when you compare it to the MSRPs of the PSR-E263 and PSR-E363. The stores in the USA typically sell the PSR-E models for roughly 60% of their MSRPs, which means we might see them charging about $199.99 for the PSR-E360:
PSR-E263 retails for $119.99, MSRP is $199.00, retail price is 60.2965% of MSRP
PSR-E363 retails for $179.99, MSRP is $299.00, retail price is 60.1973% of MSRP
PSR-E463 retails for $279.99, MSRP is $479.00, retail price is 58.4530% of MSRP
PSR-E360 might retail for $199.99, MSRP is $329.00, that retail price would be 60.7872% of MSRP
Yamaha refers to the PSR-EW300 as the replacement for the DGX-230/YPG-235, despite the fact that the PSR-EW300 doesn't have box-shaped keys. So it seems unlikely that the PSR-EW3xx line will be discontinued anytime soon. And Yamaha never updated the DGX-230/YPG-235 and DGX-530/YPG-535 models, despite the fact that the DGX-630/YPG-635 was updated to the DGX-640, DGX-650, and DGX-660. So does that mean the PSR-EW300 is going to remain as-is for several years, rather than being updated every two years?
And what about the PSR-E363/YPT-360? Will it stay in production or be taken off the market? If it stays on the market, will its retail price go up? The PSR-E360 is considerably less keyboard than the PSR-E363, so will people spend $20 more to get the PSR-S360 or opt for the PSR-E363 instead? The PSR-E360's higher price can be partially justified by the inclusion of the AC adapter, but not when you consider that the keyboard itself is seemingly just a velocity-sensitive PSR-E263. Is that just plastic made to look like wood, or is it real wood?