Funny you mention this, as I've been speaking to two different owners regarding the pop-up iDrive screen over the last couple of weeks.
In no particular order, one is going to be fitting a brand new replacement LCD into his old housing. One of these...
https://www.aliexpress.com/item/1005005334155993.html?pdp_ext_f=%7B%22sku_id%22%3A%2212000032648551173%22%7D&sourceType=1&spm=a2g0o.wish-manage-home.0.0
Obviously this isn't going to produce anything extra to the infotainment system within the car, but it will look shiney and new, which will keep it OEM.
Whereas the other is going to be fitting an Android touchscreen into and original iDrive screen, using an Android unit designed for the 3 series (E9*), as these are 8.8" as opposed to the E89 screens that are 10.25"
This will bring all the features of the Android screens, plus your OE system info, with touchscreen, should you need it, but without having to fit an MMI box. With it being the 8.8" screen keeps it perfectly within the specs of the original screen, and should be able to be fitted within this without too much modding, well that's the plan.
So I awaiting the results of both to see how we can progress in the future once they all start failing!