Neetu is a possibility- she can lose the baby and lead to some future tracks. However, with the recent hints that her baby's father is back, she's out. Otherwise that track can't really progress.
Simi was hospitalized once before, so I think the creatives would want to be more creative.
Omi and Mili are two top picks.
If Omi gets shot, story line can progress with Nakul making Simi's family look bad.
If Mili gets shot, this can make the boyfriend spend some time with her on her road to recovery ending with their wedding.
I just saw the promo and had to edit my post. My final vote is Anuj gets hit. Anuj was the only one standing on one side - the direction where the gun was pointed towards as Abhi restrained Omi.
If Anuj gets shot, this can cause Anita to change.
Have a great day,
Samoo