It will not, and to be honest, you probably won't notice any difference.

I recently updated my CCC ECU, which turned into a giant headache because I was not aware that it is a big no-no to do over a K+DCAN cable. I was fortunate enough to find someone local with ISTA/P and a proper power supply, but it was still a big hassle, and I don't really see any difference.

But to get the updated iDrive, it requires a full hardware change, plus coding. Expect to spend like $1,500.00 +