Like Boston Woody, I'd worry about the managers rather the players, something not helped by my Millers-supporting brother-in-law routinely referring to Scott and Hurst as "Rotherham's next managers". But they were shabbily treated by Ilkeston and I suspect they will honour their current contract, especially, as has been noted, to go to a club in a higher league means going full-time. That said, I do think they will leave for a bigger club at some point but they will leave us in a better position than they found us. I'm sure Newton and Kempster are considering contract extensions and the like as we speak.
As for the players, I'd give them all a chance next season. I don't know that many will leave for better pastures - the having to go full-time thing applies to them too and clearly they like playing for each other, the managers and also for us, the fans.