Prominent mons pubis 6-1/2 months after Abdominoplasty. It's the same as it was at 6 weeks. Can it still be swelling? (photos)

At this point, it is probably not related to swelling.  More likely, it is some fat that will respond to a little bit of liposuction in the area, which will help to recontour it to match the tummy area.

Speak to your surgeon about this option.

If not a fluid collection, then a little lipo by your surgeon may be appropriate. It can be done awake with just a local anesthetic.

At this point, the majority of swelling has certainly resolved but ongoing improvement in the size/shape of the pubic area is certainly possible over the course of the next several months.  Therefore, I would suggest ongoing patience. Having said that, given your concerns, it is likely that additional liposuction surgery and/or skin excision will be helpful when it comes to improving your outcome. Best to communicate your concern/question directly with your plastic surgeon, preferably in front of a full length mirror.  Working together you will come up with a good plan to proceed with. Best wishes.