Essentially it's what group finder does, except instead of doing so yourself, it looks for teammates for you
•convenient
•more ppl use a more convenient way, more ppl in LFG
•it looks through players in LFG a lot faster
•more ppl LFG'ing and it's checking through way quicker -> much faster group finding
•players looking for teams find teams more often as they're not only searching more efficiently, but probably for a longer max time as it's easy to LFG
•with more players in LFG and finding teams more often too, arena participation should significantly increase
Somewhat similar to solo Q, but it's not quite what it does, it essentially does what players do in group finder, except automatically
Another way could be to search for roles instead of specs
•possibly much easier to make, LFG can already distinguish classes and roles
•unpopular specs can find a team too, often can't not search for those
Dmg, healing
PvP talent system
For those that haven't seen
Spoiler:
With PvP talents arranged similarly the choice is possibly up to customization, playstyle.
example Fire Mage
example Holy Paladin
To be able to do that, some CC talents could get moved to PvP instead and replace them with something fun dmg mechanics etc for PvE. For example Ring of Frost etc probably isn't that exciting for PvE players. Or could get more rows in normal talents with replacing on use dmg mechanics with passive stuff for newer players. (for example Demon Blades)
Spoiler:
Arena structure
Can possibly get arena gameplay more enjoyable for players through structuring arena in a way that allows much more reasonable set of abilities
•running with same speed is fair enough to catch someone, low mobility, even just walking is viable
•'eyes' can be used to their full effect, practically assured to get players out of stealth
•can make better use of casted spells, more reliable and can surely get the target in LoS for a while occasionally
•generally more reasonable mobility, don't need close to absurd mobility to catch ppl -> don't need to run so much either
•starting areas have 'fortress' feel to them
•caster with only casted spells is probably viable
•possibly more reasonable general gameplay and required abilities
Enchants, gems, itemization