Who's to say it's labelled SE? I mean I just expect them to just replace the current 7 with 64GB models. They doubled the 6S like I mentioned.64GB base storage was used to justify the $50 increase for iPhone 8 last year.
With iPad (2018), Apple had an opportunity to increase to 64GB, but they chose to stay with 32GB.
With this iPhone 7 SE, I'm not sure 64GB base would fit with the low-cost theme.
I don't expect Apple to make a big fuss over it at least not at the key note, probably get an honourable mention when they show the current lineup to purchase