Unfortunately, creative differences with Marvel led to the overhaul and production has now been halted so that Marvel can hire a new showrunner, who will then be charged with finding another team of writers to craft the show.
Everything that Rivinoja and her writers completed is being tossed out, and the new showrunner will start from scratch.
According to The Hollywood Reporter, Erica Rivinoja and the writers who worked under her had finished several scripts and outlines for Tigra & Dazzler Show and were 15 weeks into their 20 week production schedule.