There is one Endwalker trial used as a test, I think, of the Trust system for Trials.

To this point, I have heard no word on whether they'll expand this to past and future Trials. I liked it and hope they do so for earlier content.

That being said, queues for trials are generally quick even for DPS during what I consider Prime Time (4 pm to 10 pm CDT) on the NA servers. For me, non-prime time means spending a lot more time waiting in queue.

Not sure how it works for the European servers. Because of the language preference(s) you can invoke, your queue time might be longer. You might want to expand beyond your original language preference to get quicker queue times if you haven't already done so.

Good luck.