This year marks the 20th anniversary of Banjo-Kazooie, and we're already seeing a ton of merchandise including a high-end statue, Amiibo-like figurines (Conker included), and a stylized plush.
Funko currently has a great relationship with Microsoft. Halo, Minecraft, and Gears of War are all licenses Funko has worked with before. The later eve getting a Funko inspired mobile game shown off at E3. There's quite the amount of IPs under Rare that would translate well as Pops. Banjo-Kazooie, Conker, Battletoads, Killer Instinct, Perfect Dark,Viva Pinata, and Sea of Thieves just to name the most well known. Personally, a line like this would the holy grail of Funko products for me.

With all the recent merch coming for Banjo this year, I hope one day Funko can reach a deal with Rare.