What do you think happens to Virgil after Fallout 4?

I've always felt like Virgil’s story ends way too abruptly.

If you cure him, he successfully reverses his FEV mutation and becomes human again. He can also write to Madison Li, and the letter suggests that he still wants to do scientific research and may even hope to work with her again someday.

That makes me wonder what he would realistically do afterward.

Would he keep researching FEV and try to develop a cure that works on other super mutants? Would he reconnect with Li or other scientists? Maybe leave the Glowing Sea and set up a proper laboratory somewhere?

It just feels strange that someone who accomplished something as significant as reversing FEV would simply stay in that cave forever.

What do you think Virgil’s future would look like if he survives?