Obviously it will vary from person to person but are their any standard expectations one should set?
No.
It would require a thorough evaluation of where you are and how you got there. What was your FTP when you first started to ride? What sort of shape where you in when you started (including your exercise regime)? What training have you done since you started? Ever had a VO2 max test? How old are you? Even then it's pretty much a WAG.
Twice in my life when I started cycling hard I experienced ~70% gain in FTP in less than 6 months (180W-300W)... and very little improvement after that. So I think you can get close to your potential in 6 months or less if you are already decently fit. Might as well just do the work and find out.
No.
It would require a thorough evaluation of where you are and how you got there. What was your FTP when you first started to ride? What sort of shape where you in when you started (including your exercise regime)? What training have you done since you started? Ever had a VO2 max test? How old are you? Even then it's pretty much a WAG.
Twice in my life when I started cycling hard I experienced ~70% gain in FTP in less than 6 months (180W-300W)... and very little improvement after that. So I think you can get close to your potential in 6 months or less if you are already decently fit. Might as well just do the work and find out.