The Loki from the Loki TV series creates a realistic projection for the Thanos to kill
If we know anything about Loki, it’s that he always has a way out of any sticky situation. That being said, Loki’s end in Infinity War was super anti-climactic. I mean, Loki HAD to know that a tiny knife wasn’t going to make much of a difference to Thanos while rocking an infinity stone! Being one of the most skilled illusionists and magicians in Norse mythology and Marvel in general, Loki could have done way better.
The god of mischief might have pulled a Loki like in Thor: The Dark World. But this time it just might have been more elaborate with the use of magical props, to make it seem like Thanos got him.
The god of mischief let Thanos kill him on purpose in Infinity War
This theory runs counter to the one mentioned above - Yes, Loki did let Thanos end him, but with an ulterior motive. He knew the only way to meet Odin and the other elder gods in Valhalla was to die for a noble cause. Loki planned to consult the other gods in Valhalla and return to existence with a supernatural army of his forefathers to fight as Aragorn did in the LOTR saga. Another way this could play out is Loki being willed back into existence at a time and timeline of his choosing with added magical ability and powers.
Various avatars to be expected in the Loki TV series!
Loki is known for his shape-shifting abilities which are mostly complex illusions. But what we can expect with absolute certainty are multiple versions of Loki (remember Cap v Cap in Endgame?). Except the Loki-verse is bound to be ultra-colorful!