Not the first time we’ve heard this. This is still a possibility of course but would perhaps have made more sense for the SE 3 (2022). Both the original and second generation SE adopted the form factor of the lowest end iPhone still in the lineup (iPhone 5S and 8 respectively) taking over in the last year they were in the lineup, and cutting that last year down to six months. Had this happened in March, we’d have seen the 11 dropped from the lineup in favor of an SE that adopted its form factor. Indeed, for a time there were rumors that this was the plan, but there were then rumors that this plan was scrapped (which cannot be confirmed by the mere existence of the SE2022, but could explain why they kept the form factor the same as the prior model) .
While of course it is still possible the next SE will adopt the 6.1” LCD 11/XR form factor, the 12/13 form factor will be in its last year by the time the next SE is expected in 2024. So, the devices may be old enough (cheap enough) to allow for use as the next SE. Of course, even if this were the new plan, that does not mean they will choose the 5.4” sixes over the 6” size. Also, if the next SE is actually to come sooner - March of 2023 instead of 2024 - that makes this possibility unlikely because the iPhone 13 will still have 18 months until it would have aged out, and probably not have enough cost driven out yet to hit the $400 price point.
While of course it is still possible the next SE will adopt the 6.1” LCD 11/XR form factor, the 12/13 form factor will be in its last year by the time the next SE is expected in 2024. So, the devices may be old enough (cheap enough) to allow for use as the next SE. Of course, even if this were the new plan, that does not mean they will choose the 5.4” sixes over the 6” size. Also, if the next SE is actually to come sooner - March of 2023 instead of 2024 - that makes this possibility unlikely because the iPhone 13 will still have 18 months until it would have aged out, and probably not have enough cost driven out yet to hit the $400 price point.