President Trump is a warrior. He will never, ever give up and he will prevail. This announcement IMO has several important effects:
Now being declared a candidate reduces harrassment of him
He will be months ahead of any other candidate, so [they] will have to pay attention to what he is doing, especially MSM
His declaration sends a clear message to [ them] that he is not going away ( nor our movement no matter how much cheating they do)
He will be months ahead in building a financial backing
He will have teams working on those things he laid out as his platform ie election/voting, border security, energy independence, economic growth, reducing inflation etc.
He can still be reinstated as POTUS at any time if things work out that way and then easily win in 2024
He will keep emphasizing all he is working on, and how much better his plan is for America.
He could also become speaker of the house
Lots of positives IMO.