Yes, the 90-TWO and 92A1 are part of the same mutant branch of the Beretta 92 family tree. The 90-TWO and 92A1 are more compatible with each other than they are with the rest of the 92 family.
There's a few examples of the 90-TWO/92A1 hybrid on Beretta forum...obviously these are rare considering how uncommon the 90-TWO is in the first place.
Here's a 90-TWO/96A1 version...