Don't Wait If You Want a 3.5mm Headphone Jack
According to Japanese website Mac Otakara's source, the iPhone SE 2's design could come without a 3.5mm headphone jack.
If true, it's design will align with the iPhone 7, iPhone 7 Plus, iPhone X, iPhone 8, iPhone 8 Plus, iPhone XS, iPhone XS Plus, iPhone XR, iPhone 11, iPhone 11 Pro, and iPhone Pro Max which all rely on Bluetooth connectivity.
It would likely mean the end of Apple selling iPhones with a 3.5mm headphone jack. The iPhone 6s and iPhone 6s Plus, the newest devices with the feature still on board, have both been discontinued.
If you still rely on a 3.5mm headphone jack to connect your various accessories, you might want to consider buying the original iPhone SE.