7LPP/6LPP - 7LPP was Samsung's first process using EUV, and was used in a variety of smartphone SoCs and more recently for some IBM CPUs. Outside of IBM it hasn't seen any new chips in several years, and IBM are a bit of a special case, both in terms of their longer time-to-market and their R&D involvement
(I believe Samsung's 7LPP leverages IBM R&D). With EUV tools in short supply, Samsung would have also been eager to move production lines over to 5nm/4nm processes, which would bring in more revenue. 6LPP was announced as an improved version of 7LPP, but later disappeared off roadmaps with no chips ever manufactured on it. I would consider 7LPP or 6LPP very unlikely at this stage.
5LPE/5LPP - Samsung considers 5LPE and 5LPP to be their second generation EUV process, and lists them alongside 7LPP as part of the same family (see
here). Here 5LPE is the early version of the process, and 5LPP the improved version. They're
largely compatible with 7LPP designs, which would explain why they replaced 7LPP so quickly
with the exception of IBM. The 5nm family is a possibility for Drake, but the lines between Samsung's "5nm" chips and their "4nm" chips is a little blurry, as I'll mention below.