Hi Neil,
If you and the other team all use the PE, yes , the two project can merge.
While if you use PE, the other team use KSDK, it hard to merge.
"I recommend you use one of them re-create the other project." I say this according to if you use PE,
the other team use KSDK, the better way is on your project develop the other code which the other team (use ksdk) made.
In a word use the same driver (PE Or ksdk) .
If you still have any question, please conatact me .
BR
Alice