He is still suspended and not coming back. If they wanted to protect him, why wait? They could have just done all this day one.
I honestly don't get why everyone seems to think Niji is desperate to hold onto him, it's not like he was an asset. He was one of the lowest viewed and super-chatted livers even at the best of times.
The reason he isn't terminated and Twisty wasn't terminated until now is because they can't afford it. There are no good options and no good outcomes, no reason they could give that would jive with both their community and everyone that hates them. So they just waited.
Twisty has done them a giant favour by publicly giving so many people, including those that hate Niji, a reason to genuinely dislike her that getting rid of her is going to be much less of a pain. Aster hasn't been that stupid so far.
I could even see one of the reasons that there hasn't been a notice for Twisty yet being that they want to let both of them go, finally rip the Band-Aid off, and they need a little more time to get the necessary signatures from Aster due to timezone differences.