No.

More tiers would be best fix.

You do know that there is literally two masteries that do exactly that, right? 

Cycle of Revenge

Has a 50% chance of increasing the Turn Meter by 15% when an ally is attacked with a critical hit. Will only increase the Turn Meter once if an ally receives multiple critical hits from a single skill. 

Timely Intervention

Increases this Champions’ Turn Meter by 20% whenever an ally hero drops below 25% HP.  

More tiers coupled with a matchmaking system which is results based and not based on player power (which is just a horrendous metric for deciding matchmaking which only allows 4 characters).

It's amazing that every time they announce they are fixing the arena they manage to make it worst. And they charge you for it

This is the obvious answer

Without more tiers players with decent teams will be constantly pushed downwards and things will constantly get worse - there are simply too many decently designed arena teams for the number of tiers.

Not removing excess points at reset would also help. Its silly that someone can lose almost 200 points at reset then within a few minutes of reset find they have dropped 2 tiers.

New improvment that they can do in Arena:

- new Legendary hero called Mastercard power - he can be fused when you spend at least 2000 USD in game . His A3 that will go 1st in any battle- give all ally shiedl for 100 rounds that can reflect all damage back to attckers if they have no Mastercard shield too . this way they can make arena just for whales  and all low spenders/F2P players will be excluded ( as is today )

- after 2-3 months they can nerfed Mastercard hero ( as they are doing now with others) and create a new hero Visa Terror - he can be fused after you spend 5000 USd in game . Skill- attack before Mastercard, block Shield and give shield to ally that cant be harmed by any team except Visa ones.... and so one

They can continue 4 ever ... potential heroes : Bitcoin Furry, CashSmash ....

They need to add new divisions; Bronze, Silver, Gold, Platinum, Master and finally Grand Master (top 1000 players for example). Player power or team power should not come in to match making, it should be based on MMR only.

Man is very simple- they are intrested in only one thing : CASH. Fixixng arena will make players happy but will also drop Plarium incomings .

And game is made to bring money.Not to make players happy or to create a fair enviroment.

And their idea is simple - you need to spend in order to move up .

In all this games ( and I play lots) top players are the biggests spenders . I never saw a top player that is F2P or low spender.

Problem is that in Raid they dream only on cash and USD.

be wary what you wish for, speed meta makes the matches fast atleast.

kill the speed meta and every match might degrade into a a several minute slugfest. As bad as it is now THAT would be even worse

cash is bringing in new whales to replace the old ones who eventually quit. not making arena a swamp for new potential whales to get a taste of and realize they're better off someplace else. Not caring about creating customer loyalty is business suicide.