The SE has been around for almost 10 years. I don't think we'll see any more iPhone SEs. The new one is the "e" - and it will be a slightly downgraded version of the year's top model - like the Samsung FE edition.
The iPhone 17 series will be released in September - and in February 2026 we might see a 17e, and the 16e will disappear again. Or the 16e will remain in the line up, but with a reduced price like we saw with the iPad 10. Apple uses the phrase "Future-proof" in their sales materials for the 16e, which makes me feel like it's an iPhone that will be sold for a few years.
Since the Mini is out - I don't think there will be any e models based on that model. Mini is dead, the idea was good enough - but most people have gotten used to the 6.1" screen, and won't go down. The time when mobile phones had to be small is long gone, even though some of us still cheer for it.
I was all-in on the 12 Mini up until its release - and when it was presented I was sure it was the perfect iPhone. So I bought it - and had a slightly "meh" feeling. Yes, the size was good - but it was a bit like I didn't have the "right" iPhone. On top of that, the battery life was really bad, and I ended up replacing it for a normal iPhone 12 which I was really happy with.