Is Mundo anywhere near the bucket list of champions to tune up abit?

I feel like his passive could use some more love. Its main point of power is during the early game to counter act the HP costs and add abit of lane sustain, but outside of that it really falls off.

If by some chance he is infact being looked at right now or in the near future this is what I wanted to suggest.

Tie the passive into base HP regen. It could be lowered or increased accordingly but the point would still be to tie his regen into the base HP regen stat so that the items with % base HP regen empowers it, further strengthening his role as a regen tank.