Little Tokyo is having a fun little festival to try out on New Years Day. If it's anything like Nisei week I'm sure it'll be a fun day.
By the way Metro seems to be free both on christmas and New Years here in LA between 9am-2am, The iconic fire tower above actually has a termite problem. It might be torn down for a shiny new metal one. As long as it doesn't look as awful as the NOHO sign it should be fine.