The reforms may or may not be necessary. I come from a country without term limits and I honestly think it’s basically a good thing. But it’s also a parliamentary system, not a presidential one, and I think presidential systems are bad.

Regardless of all that though, I do think that if removing or expanding term limits, it is crucial, if only for the appearance of democracy, that the limit still apply to whoever was in power when the change was made, and only take effect with the next person. That prevents someone abusing their current power to get themselves more power, or even the appearance that they might be doing that.