the two games are similar in history, but game dynamics are completely different. You will not need EQ1 history to be successful in EQ2. Infect, it may be better to not have EQ1 history simply because EQ1 was hard set on who coudl tank, who coudl heal, and who could DPS.
In EQ2, all fighters can tank. All priests can heal. As far as another MMO like it, I dont beleive there is one.
Try to trial versions first, to see how it goes.