Should India go for a new wicketkeeper? or continue Dravid

Sine taking over Wicketkeeping, Dravid's batting performance has been increasingly getting better rather than going down!!!

India has a record of highest wicket-keepers. they change one usually every 5 tests or 7 odi's.

Since Mongia, there has been none other?
After mongia they tried a ton other.

Shouldn't India rather continue with Dravid and have one more specialist bowler/batsman, in the side---instead of picking up new w/k every now and then.