[magduf]

Two seasons seems a little short; maybe 3 would be better?

Just look at The Expanse; that one I thought did well with keeping me engaged, but they ended it (by design) after 3 seasons, and it seemed to be just the right length for the overall story arc they were going for.

Whereas Game of Thrones stayed interesting for a long time (6 seasons to be exact), but after that started faltering and in season 8 really became disappointing, mainly because the books they were basing it on had run out and they were now making things up as they went along.