Taken from the Lotro message board:
"Up to 100 folks will get pink slips. Somehow, I was able to avoid it so far - will not be sticking for long, I can tell you that much. This is horrible and some of the best folks were let go. In 2012 we had almost 500 people and I think we will have less than 200 after all dust settles. Two MMOs and one MOBA, and this is not including Asheron's Call as there is no dev there... It's all about the bottom line for WB, they will kill Turbine just like they killed numerous companies they acquired"
So far I've only seen four actual "names" from Lotro going, but from WB statement I wouldn't be surprised if they had chosen to focus Turbine on that crappy-looking Infinite Crisis in the hope of making $$$.
*edit* looks like a bunch of QA people went, plus some(?) of the people who did the class redesigns in the last expansion. There's a couple of people at least who worked on the zones as well, who'll be missed IMO as the world design is / was great.