I think the mushroom island should have a link to the nether

I think ethir the mushroom island could a verity in the nether where it spone a island like mushroom with nether mushroom forest and it spawned on the same soil but with the purple stuff on top of the netherrack with two new cow varieties crimson mushcow and warp fungicow, and their a chance to have one of these cows and trees to spawn on the over world mushroom island. I think it would spice up the mushroom islands with the mushroom mix, and in the spirit with the gold food the super rare golden mushroom and mushroom cow. Could be a update to the more rare items like a gold apple tree and wild gold carrot, like treasure hunting in the wild, keep player's on the ground. Just a idea but be really cool for exploring