So this is what they said last August. So they did say they were going to do this, but theres a few issues. Firstly, they obviously did not do this later in the year. Second, it says “select series and rewards” which means not all of them. The third issue is their message last month of what their plans will be till May which wont include this either. Lastly, in the message from last month they said these prior plans will be “reevaluated”, which means theres a 50/50 chance that it may not happen at all.
I think going by Horizons path, these old fomo cars were most likely going to be reimplemented, still in the same fomo monthly way, once they decided to stop adding new content.
This is likely why they used the term “select”, because they need the bulk of these cars to sustain their service.