It looks like the newly announced Sony RX100 VA is its real replacement. Essentially the same as the RX100 V, it does see some updates. It includes the processor and firmware from the RX100 VI but does miss some of the hardware improvements.
On the outside, Sony has stuck to a proven formula. The new Sony RX100 VI looks identical to the RX100 V. The only difference is the number printed on it. Where things change though, is when you turn it on. The most noticeable difference is that the lens can come out a lot more. Upgrading the 24-70mm equivalent field of view of the RX100 V, the new RX100 VI boasts a massive 70-200mm equivalent range.