A new report published in DigiTimes gives a first look at Apple's 2020 plans and the site claims it will be a year which sees the introduction of a new and much smaller iPhone which sounds suspiciously like the iPhone SE2.
DigiTimes says the new iPhone model will be 5.42-inches - significantly smaller than any current iPhone design Apple produces today and just 0.42-inches smaller than the 5-inch iPhone SE.
Moreover, with the bezel-less and home button-less designs iPhones now sport, the additional screen size could fit into a chassis only half an inch longer than the 4.87-inch iPhone SE.
DigiTimes also claims this mini iPhone will have an OLED display "with either Samsung Display's Y-Octa or LG Display's TOE touch technology" (the former has already been hotly tipped) which means it won't be a strictly budget device.
DigiTimes also mentions slight size changes to Apple's other iPhones in 2020 - 6.06 and 6.67-inches - but these appear to be tweaks of the iPhone XR and iPhone XS Max. This suggests it could be the iPhone XS which shrinks to draw a greater distinction between it and the Max edition.
Keep in mind however that any plans Apple has for 2020 iPhones has plenty of time to change.