Yes, however this depending on the cooperation of other Ingress players. Ingress players can upvote a POI. Currently Pokemon Go players don't have access to the tools required to do this. However you can do this with a Level 1 Ingress account.
The POI with the most upvotes in an S2 L14 cell that isn't already a gym, will become the next gym when the next criteria is met in that S2 L14 cell, for example 6x POI to make a second gym.
At the sync time each day (approx 9am-9:30am UTC), the POI data gets copied from Ingress. About 10 hours after that, it goes live in Pokemon Go.
If your POI submission gets accepted at 8am UTC, it will make the daily sync and will go live in Pokemon Go after about 12 hours.
If your POI submission gets accepted at 11am UTC, you’ve missed the daily sync so would need to wait until the next day before it goes live.
The sync not only counts for what POI submissions are live, but also their current photo votes. So if it goes live a 10 minutes before the cut-off sync time, that would mean you only have 10 minutes to see the email and vote on the photo if you want it to be the gym. If it needs multiple votes (i.e. multiple people) then it might not be possible to coordinate in such a limited amount of time.
So now you hopefully understand why a little planning will easily help you get the desired end result. In the case of your town or city center this is even more relevant as you might find you only have a few empty S2 L17 cells to create a new Pokestop in.
Having this knowledge will allow you to identity and prioritise these empty S2 L17 cells. Although you can submit something else in an L17 cell as that will benefit Ingress players, even though it won't Pokemon players.