[Football Manager 2019 Feature Blogs: Training Overhaul]

17 minutes ago, Seb Wassell said:

Ronaldo and Quaresma did not have the same potential, they were perceived to have the same potential. They might well have the same potential, but one of them fulfilled it and one did not. The difference today between the two is their current ability, not potential, which as you suggest may have been achieved through work ethic etc.

Potential ability is your genetic maximum, that's not variable. How likely you are to reach that, or how close you get, is of course completely changeable and influenced by everything along the way, training, coaches, luck, etc.

Yeah, this makes sense. Particularly when I consider the fact that potential typically isn't a visible stat. 

I'm quite satisfied and will be looking forward to the beta release. 

[Football Manager 2019 Feature Blogs: Training Overhaul]

The training overhaul for me is the most important feature in FM19. I'm wondering tho, does this affect the upper limit of player potential?

I know it might seem like a ridiculous question, but I feel that players should be able to exceed their potential if the training is done to a high enough standard.

Honestly, potential should be a lot more dynamic, but that might be an entirely new feature on its own.

Never forget that Ronaldo and Quaresma supposedly had the same potential at some point but work ethic, the standard of training and level of team play created a chasm between them.

If I start training a 16-year-old with a current ability of 105 potential of 135 at a club with 'state of the art training facilities' and I play this kid week in week out at the highest level, that player should exceed that his potential considerably at age 28. 

Traits like Flair, quickness obviously might not vary largely if the player doesn't have that innate ability/pace, but composure, stamina, decision making, passing, crossing etc should let said player exceed this potential cap greatly.