Not a chance. I've been using Unreal for a few years now, and as soon as Godot has the features I need I'll go back to it. The company behind Unity has shown they don't care about their engine, just the money they can extract from it. And who's to say they don't change their terms at some future time when things have quieted down, and the dust has settled, to retroactively introduce this run-time fee back into the mix for older versions as well.