Is the story going to veer into scifi more and leave fantasy behind?
I'm not a huge expert on either - in fact I've been actively bored by most of the quote-unquote scifi I've tried partaking in so my knowledge there is super lacking - but is there all that much of a difference between the two? I don't think anyone likes any fantasy that doesn't have a consistent logic and at least a setting plausible enough to survive a long look and a narrow squint. When you've got a lynchpin of scifi media like Star Trek letting humans reproduce with whatever alien species the writer likes, and summoning whatever food they want out of a magic box, and travelling to any point in history through magic portals...
I mean, I just don't see a lot of difference between the two genres outside of the flavour of the jargon used to "explain" it all. Your mom's half-elf is your dad's half-Vulcan. Your sister's Teleportation spell is your brother's Warp Drive.
I wouldn't worry about it. Genre-policing seems to keep a lot of fiction stuck in the mud. I've avoided a lot of fantasy all my life, too, because it just seemed like desperate reiterations of that Tolkien guy. Whom I believe wrote most of his stuff as a sandbox to play with the science of linguistics. Talk about science fiction.
Anyway, the tone and priorities of the story will remain consistent in the second book right through to the end. A lot of the stuff we talk about here never comes to the forefront of the comic :) It's like, "If you know, you know" stuff.