We heard it loud and clear when the Nostalrius team pulled the plug, "We will release the source code."
Then, after lots of publicity, we hear, "We may release the source code."
Why the "may?" Just release it.
The code should have been open source all along. It's Mangos with lot's of fixes, but still Mangos, taken from a community of developers and fans who worked just as hard and long as the Nostalrius team did. The community deserves the code.
It's been the same with almost every successful vanilla server, make lots of fixes to mangos, profit, give nothing back.
If Blizzard ends up hiring some of the Nostalrius team and they horde the code, then it seems the plan all along was for the Nostalrius team to profit, and once again the mangos community gets left in the cold.
The code should have already been released back to the community from which it was taken in the first place.
As other sins grow old, greed remains young.