Hi, Alex here. I'd like to respond to a lot of the discussedion here.
I really hope Genos3 has an 88-key option, but I doubt it since they stuk with having only the 76-key version for Genos 1 and 2. There will definitely be some added and some modified voices and styles. I don't really use the styles all that much, but I'm sure others like having lots of styles.
SX910 will probably be based on the Genos1, with a 61-key keyboard as always.
It's hard to know what the SX950 will be based on, as it would likely be many, many years from now.
The SX series doesn't necessarily have to stay at 61 keys, as shown by the Tyros line. The Tyros 1-4 had 61 keys with no other option, while the T5 added a 76-key version. I am happy with the built in speakers of the SX900.
I also think the new SX series will be released in 2025, similar to the SX900/700.
Surely it will come with at least some of the G2 features, not sure which ones exactly.
To answer Bogdan's question, I feel like my next keyboard needs a built-in USB audio interface, like the Genos2. If the next SX900 doesn't have that, I will not buy it. I hope we get some of the new G2 voices in addition to the G1 voices, but if not, that's fine, I guess.
I think there's nothing Yamaha needs to learn after the G2. Buyers have a lot of information they can read about before making decisions on whether to purchase the G2, even based on fact. They were selling a keyboard with FM capabilities, a built-in USB audio interface, Revelation reverb, and more voices and styles. There was no secrecy. It's ok that it's another plastic keyboard... I don't need more than that.
There was just enough hype for what we got, with Ambient Drums, style dynamics, new styles and FM capabilities. I agree about it taking FAR too long to release, but the new technology is really cool.
You can still learn what you'll get; the specs, videos and data list have been available for a while now.
I think my SX900 is not perfect, as it has many legacy voices in the main categories, like SuitcaseSoft, MIDIGrand, Piano&Orchestra, PedalSteelGuitar (8 36 4), JazzVibes, and many more. In addition, Voice Guide isn't the best (even on G2.)
For the keybed, I'd say the quality is not bad. There are reasons for me to jump to the next SX900, if I don't have enough money for Genos2 by that time: better voices, better accessibility with Voice Guide (hopefully), a built-in USB audio interface, etc.
In terms of the CFX sound, I already have a better CFX than Genos2, Production Voices 300 Grand. While it would be nice to have a built-in CFX sound that's better than the current SX pianos, that isn't really necessary for me anymore.
Since the G2 has 3GB of expansion memory, I doubt that the SX replacements will have that much. Maybe closer to 2GB would be more reasonable.
Alex