Not for Elliott yeesh, Id stand pat on Vokoun for another game or two at least! its the penguins, they'll give him wins just because he's back there.
Allen could definitely be worth a look, but I'm not sure Id want to swap Vokouin for him personally... maybe my worst Dman or another avg tender.
NOTE: As I write this I have no idea what is going on with MAFs injury and when he might be back, if hes back soon then give it a game with MAF starting then go with Allen I think... re-injury is always a possibility