Any plans for an upgraded S300 stereo power amp like in the Stellar Gold series?

Hello, I have been very happy with the S300 and wanted to know if there are any plans for an upgraded version of the amp.
I want to stick with a solid state stereo amplifier and do not want to go to a pair of mono amps like the M700 or M1200’s. I demo’d a pair of M700’s a few years ago and while they sounded great I want to stick with a single stereo amp.
I currently have it paired up with a Stellar Gold Preamplifier and it sounds great but an improvement with maybe more power would be very welcome.