THE AFL has considered the idea of a 10-team finals system in a shake-up of the established top-eight system that would involve wildcard spots.

Football operations boss Mark Evans revealed on Monday night that the AFL had looked at a new structure that involved a top six and a further four teams battling for wildcard positions. 

It was one of a number of a number of ideas in the development stage being explored by the AFL. 

The prospect of adding two teams to the finals was first explored when the League expanded to 18 teams in 2012.

"Maybe you have six who are in (the finals), fighting for spots. Then maybe you're fighting for four wildcard playoffs," Evans told Fox Footy.

"I don't mind it. There are some logistical challenges but I think it's something worthwhile progressing."

Evans revealed on Monday night there were no plans to tighten the interchange cap below 90 next season after its successful introduction in 2016.

He did, however, float a left-field idea that could turn the interchange system on its head. 

"I’ve actually got an idea that we should trial — maybe in a pre-season game — whether we just interchange after goals," Evans said.

"Incentivise goalscoring and perhaps, maybe that gives us the more natural limit."

The League is also closely monitoring the NRL's video review bunker, which was introduced in 2016 and is intended to deliver faster and more accurate decisions.

In sharp contrast, camera angles used in the AFL's goal-review system vary from venue to venue.

"It (the NRL bunker) is certainly an impressive setup and something that we'll trial this year ... (assessing) whether we can get the feeds back from some interstate venues," Evans said.

Evans said a three-tiered conference fixture needed more work after it was put to clubs last year and met with resistance.

"It’d be unlikely for next year," he said.  

"It’s something where we’d want to do a lot more work with clubs before we progressed it any further."