That's not correct. Acceleration attitude will stay at 3100, but reaching 3000 ft you'll get ALT* if you didn't select a higher altitude by then.
The "new acceleration altitude" revision is applied only if there is a constraint, cross at 3000 ft, in the departure.
you are totally right and i stand corrected, THR RED/ACC will only brought down to FCU ALT should FCU ALT be less than THR RED ALT