Elite - most likely - but college is not the same as elite.
Also she is 9 so you have a long way to go - interests may change, etc. A compulsory gymnast is not automatically a great optionals gymnast - some stay great, but others who might not be great at compulsory is great at optional and the other way around as well. My daughter is 11 and is a level 8. I am assuming she will repeat 9 so should be a level 10 by the time she is a Freshman but even at the upper levels closer to 10 there is a lot that can happen.
In terms of moving up, yes, it can happen quickly if that is the path that is decided for the gymnast. There are score-out meets, etc.
I believe people will tell you the goal for college is to be a level 10 by 9th grade and that it is totally normal to spend 1 year per level and to repeat either 8 and/or 9 before getting to 10. It also helps if the gym has experience getting girls to college or if they have that as a possible path for your daughter.
I think if they moved her up she would get there but then also like if they are uptraining in practice and competing 3 that is a lot different than competing 3 and training 3. So there are a lot of variables. She is 9 now, so even if she does 4 next year, then 5, then 6, then 7...she would not be at level 10 until later in high school. She can go straight from 5 to 7 to 8 etc. if she is ready.
The key is that she enjoys it and works hard at it. You absolutely cannot force a kid to do this sport - they have to love it on their own.