Samsung has premiered an all-new Galaxy A-series this year. It may have been intended to replace the Galaxy J-line in terms of its device tier, and apparently allows the OEM a slight reprise from its usual smartphone design language. From the Galaxy A10 (which features the notch some may never have thought this company would adopt) to the Galaxy A80, many models from this new range have something unique aboout them.
This may also extend to the Galaxy A-line's next rumored iteration, the Galaxy A90. Some leaks have pointed to a display for this phone that may be capable of sliding downwards to reveal front-facing sensors, as with the Mi Mix 3. Some renders suggest that this component will be designed as well, if not better than, the Xiaomi phone.
A phone with a model number that may match this description (SM-A9050) has recently shown up on Geekbench. This listing shows that the putative A90 will have 6GB RAM and run Android 9.0 (Pie) out of the box. This sounds promising so far...however, the same results show an 'SM6150' as the SM-A9050's processor. This code-name is linked closely to the Snapdragon 675. As the Galaxy A80 features the Snapdragon 730, it seems that the continuum of SoC power in this series may have become somewhat convoluted.
On the other hand, an earlier prototype phone believed to be the Galaxy A80 prior to its release (its model number was SM-A805F) also exhibited the SM6150 chipset in its own preliminary Geekbench test results. Therefore, it may be that the final configuration for the putative Galaxy A90 may not yet be set in stone.