New information regarding Samsung S10 line-up
In at interview with Bloomberg, an insider spoke about Samsung's plans for the Q1 2019. This report revealed that Samsung is indeed working on three different S10 version, which means that they will have a line-up similar to what Apple offers with their new iPhones.
The entry level Galaxy S10, the cheapest version that is, will have a flat AMOLED display and probably a side-mounted fingerprint scanner. There is no information about cameras, but taking into account that this is the cheapest version, it is likely that there will only be a single camera setup on the back.
The baseline Galaxy S10 will have a dual curved AMOLED dispaly, a triple camera setup on the rear and an in-display fingerprint scanner. The S10 Plus will basically be the same, just with a bigger display.