Ok, Gonna give my opinion here.
From what I used to see of the old ranking system and from what I know about the new ranking system, the main problem here is longevity of the achievement. Back in the old system, it was fairly impressive to reach a rank in the top 500, and it felt really good if you reached somewhere in the top 100. In the new system, that sense of achievement isn't there anymore.
"Oh I reached rank 50? Too bad that'll reset in the next x amount of months."
Giving players a way to log a lifetime rank would probably go a long way to keep players interested in the game, one that doesn't even need rewards and doesn't even have to be linked to ranked play. Hell, I know that I used to play specifically to see if I could get rank 100 globally. Now that drive isn't there because it's less permanent.
This also doesn't have to eliminate the new ranking system, or even require it to change at all. Making a comparison to LoL here, there's a normals MMR and a ranked MMR as I understand it (haven't played since they destroyed my champ, can't remember if that's what it's called), and neither affects the other. you gain normal MMR by playing unranked games, and you gain ranked MMR by playing ranked games (or elo, I really can't remember what it was called)
Now every season the ranked elo/MMR resets but the normals doesn't. Granted this doesn't have as big of an effect in toribash, because you won't fight better people unless you actually want to in this game, but it will give a sense of achievement without actually affecting the ranking system, and this in turn helps keep people interested.
Hopefully my point was clear enough, I tend to ramble sometimes. If it wasn't I can elaborate upon it if anyone would like me to.
Last edited by Templar; Mar 6, 2016 at 11:23 AM.