1 time trial is enough, if it's a time trial of 50/60 km.I don't know if that is really a good signal. It could end up with only one time trial again.
In the first week only the Tarbes stage could still be a time trial. Not much info on this stage so far.
In the second week most possible options seems gone, maybe the day before the rest day.
In the third week, there are still some stages unknown, so, it could be there as well. But if the Tarbes stage was not a time trial, and without a prologue there will be only 1 time trial again.
Unfortunately now they don't do long time trials.
I don't like 2 time trials of 50 km like in the old days, but i also don't like 1 or 2 time trials with 25/35 km like they do now. It's like losing a stage. One long time trial of 50/60 km it's the best option.