Just finished Shards of Earth by Adrian Tchaikovsky. Should I keep going with the trilogy?

I enjoyed it, I liked the characters, but in terms of cool scifi concepts, I feel like it didn’t really progress into anything more than it was in the first half. The character development and action was good, but I’m not that interested in 2 more books of that.

Do the sequels introduce interesting new ideas or is it more of the same?