It appears that no Tasmanian team will be represented in the competition next year. It looks like the roadmap for Tasmania entering the VFL and then into the AFL has taken a detour.

Queenslander Thu, 8 Oct 2020 - 10:54

Provisional means "arranged or existing for the present, possibly to be changed later"

Due to COVID, Tasmania's entry into the VFL has been delayed. I am sure they'll look into in within the next few years but are just focusing on getting the VFL/NEAFL merger sorted first. I think the VFL/East Coast league will no longer be run by AFL Victoria with the AFL taking over control like they did with the Nab League.