Member Info for gruffles

This is my first ever post on anything like this so hopefully I don’t cause too much (unintentional) offence.
I used to compete with my son on fantasy football years ago, he joined an investment club at school and got interested and then decided at university that what bit of money he had could probably produce a better return buying shares than 1% in the building society. He signed up with Freetrade and got plenty of his friends to as well, doing quite nicely just from the free random shares that brought him. He persuaded me to join and I matched the cash he had in to see who could come out ahead over a six month period. I made a few pounds more than I expected at the back end of last year, sold some so that I definitely had some cash in the account whatever happened. Was just looking at some of the new offerings on Freetrade and went for EUA over Greatland . I was just feeling very smug having made 80% pretty quickly when shares suspended. Have done some homework and am aware (roughly) of what is going on at the moment.
Having given half a life story my question is what happens if a deal goes through, shareholders approve and a wonderful new price is arrived at, is the suspension just lifted without notice and it’s everyone for themselves hitting the sell button?
Excuse the naivety but this is all totally new to me. If anyone feels willing to offer any advice it would be greatly appreciated.