I just re-read this. Isn't WWDC in June? That matches up with the rumors I read. I hoped it was coming in March, but the latest rumors say June.
When Apple will announce new products, other than the new flagship iPhone (which is traditionally announced in September), is guesswork, at best. Apple often announces, with little fanfare, new products in March -- such as the new iPad last year. So, a new SE could be announced this month, much like the iPad was last year, or they could wait until WWDC, like they did with the iPad Pro last year. I know the AirPower is rumored to finally be released soon, so I could see Apple announcing a new SE (one with wireless charging) at the same time as they announce the AirPower finally being released. Then again, they could not release it until June, or some other time; all we can do is wait.