According to you:
level 90 Fighter: STR 65, CON 30, INT 7, WIS 49, AGI 124
level 99 Fighter: STR 68, CON 45, INT 7, WIS 58, AGI 124

It is your own choice. Can you explain us why did you choose for increasing the wisdom after obtained fully assistant skills?

I would do it:
level 99 Fighter: STR 65, CON 57, INT 7, WIS 49, AGI 124 (fully add into CON)
- or -
level 99 Fighter: STR 74, CON 48, INT 7, WIS 49, AGI 124 (add 1 into STR, 2 into CON after every leveling up)