Well assuming we get them to publication, yes I'll be an author, but that's really all that relevant when the project is still ongoing and hasn't ever been presented/published. Everything is rumor and window dressing until something has passed through peer review and been published.
Ideally, you would have a nice mix of published and ongoing projects; most active researchers and clinicians will have CVs to this effect. Even since submitting ERAS I've published another first author paper, had 4 abstracts accepted at meetings, and even more ongoing projects. I really love this stuff so I'm always working on something and I think my CV reflects that passion. Even on the interview trail I met many people who were also balancing ongoing work with rotations and interviews.
My advice to you would be to meet with faculty in your desired specialty ASAP and see what you can get working on that you could get published fast. Even if you can't get it published, at least have it submitted to a journal by the time you apply. I honestly probably hear about 2-3 potential projects each week and I'm not even looking for any new ones right now. They are everywhere. Find something that interests you that would likely be published and turn it around FAST. You can write a case report/lit review rough draft in a weekend. Many of your faculty may be working on review articles that you could assist with, but clarify authorship before you lift a finger. Ask your mentors if they have any cases to write up or any chart review projects you could do. These things are insanely easy to do.