What are they going to be teaching about gender identity that doesn't reinforce gender stereotypes?
Nothing. Gender identity is all about stereotypes. The exception...possibly...being in cases of genuine, severe dysphoria.
Will it be compatible with science and biology?
No, because gender identity 'theory' is faith-based and entirely disconnected from science and biology.
Will they be teaching extreme gender ideology ?
Yes, because gender ideology admits no compromise. All gender ideology is extreme and prioritises the feelings of the ideologue over the lived experiences of women, in particular, and society in general.