What to do with RK802III?

I've been using my RK802III with the TV the last years and it works great. I mostly use it for streaming services.
Now I see that some services start to require Android 4.3. The last update for the RK802III is 4.2.2.
Are there any plans for upgrades?
If not what do you do with your devices? Just buy a new one?
Are there any real reasons why Android 5/6 couldn't run on the RK802III?
Now I see that some services start to require Android 4.3. The last update for the RK802III is 4.2.2.
Are there any plans for upgrades?
If not what do you do with your devices? Just buy a new one?
Are there any real reasons why Android 5/6 couldn't run on the RK802III?