Why hasn't the franchise explored the idea of "demasters"?

I like the clean and crisp style of the sprite-bases Pokemon games the best. No muddy textures, no pixelated movement, no unnecessary camera sway. Just a superb 2D pixel artstyle. Gen1 laid the groundwork, Gen2 experimented and Gen3 perfected it.

At this point the franchise has obviously moved well past that but that had its own drawbacks. Thinking of the negative impressions some Switch titles had based on the sub-par graphics. Now, that isn't only a hardware limitation but also due to other factors, like a very unforgiving release schedule, complacency, and what not.

But I'd totally be down for a modern Switch title being re-imagined as a 2D sprite-based game, like the first three generations.

Nostalgia-bait or not, I think there is still merit to the concept of a traditional 2D Pokemon game. If the Switch isn't abused to force out 3D graphics, the game could also be stunningly beautiful.