I'm not sure if this is prep for an MCU debut. That would feel misguided since the new Blade isn't anywhere close to established in the MCU. Having a kid feels like a third or fourth movie storyline.
I didn't have a problem with the first issue. Establishes the characters no surprises. I see several potential similarities with other young Supernatural warriors. Buffy the Vampire Slayer, American Dragon Jake Long, Juniper Lee, Blood the Last Vampire, Teen Wolf etc. etc. We will see where they take things. I'm not going to pretend like the issue wow'd me either. It hit all the spots it needed and gave Bloodline a solid start.
Everyone is assuming this will be a slice of life title or something that should be on Webtoon and I don't think that will be where this story goes. I could be wrong, but given how episode 1 ended Blade's arrival should provide some big fight scenes.
Hopefully this vampire nation storyline wraps up soon I don't want it to drag on forever like Krakoa.