When the Gemini was first discovered to be Mediatek based I nearly groaned out loud, I knew it would become a significant pain point.
The key thing we need is a good kernel, ideally with source so we can rebuild it and patch it. Unfortunately we know Mediatek are serial GPL violators and even if they do release source it might not match the kernel binaries.
In my experience their code is low quality and can't be used with a modern kernel - I stupidly bought an 802.11ac Wi-Fi adaptor that claimed Linux compatibility, but their driver was for an ancient kernel, and attempting to compile it gave so many warnings I had to turn them all off in gcc! That adaptor has sat gathering dust in a drawer for most of its life
And yet I still bought a Gemini. Fortunately Google Play Services is a core part of android which can be upgraded along with most system apps. We can also unlock the bootloader and abuse root to hack the system if needed.
That all said, yes, I want to see a plan to move to Android P. I too want security updates, new features, more modular system, newer kernel etc.
I hope Planet continue to make sales so that they gave the revenue stream to be able to afford to do this.