Sure. The original plan when I wrote the first draft of it for my home group was to go directly into Gary Gygax's Necropolis, which was a pretty epic Egyptian-themed adventure (at the time it had been converted to 3rd edition). However, just recently, Frog God Games/Necromancer has released a 5e update of Necropolis, so it's ready to go into right after Coils of Set.Thanks, I'm on the way to buy it, also any idea if it's suitable for extension to lvls 1-20 (we like high levels and using the full range of the game possibilities) ?
However, the original adventure as published does not link directly to Necropolis. There are a few "continuing the adventure" sidebars provided at the end, should you not want to do Necropolis.
Coils of Set is now located in Frog God Games' Lost Lands campaign setting, if you'd like to expand it with the current world building.