Board Thread:Game Discussion/@comment-32402722-20180131175141/@comment-31433854-20180131205326

6.1 will also be the 5-year anniversary, so having LTS's for three top cars (that they probably don't want to do FB's for anyway) makes some sense. I do expect some new content as well, likely 'Motorsports' related, be it NASCAR or FE. Plus presumably a decent existing car for free (maybe it'll be that extra '17 NASCAR).

his mini-update, and probably some of the errors in 6.0, are likely due to focusing resources on 6.1.

So, we won't know for sure until 6.1 drops, but given the situation and history of the source, I'm fairly confident these LTSs are coming.