I'm starting off a new 5th edition campaign, which will hopefully hopefully be running long term. We've played some 13th age and one of the things the players really enjoyed was the Incremental advancement system.
In 13th Age, at certain milestones (we used the end of every session), characters can take on an aspect of their next level. This includes a bonus to atk/defenses, extra hit points, talents, powers, a feat or an ability bonus, or an icon relationship.
It seems that just about every class in 5th edition gains something at every level, whether it be new spells, class features, or proficiency bonus. We're also planning on porting icon relationships over, so that will be an option for at least a few of the level ups.
Does 5th edition have an equivalent/ comparable incremental advance system that would keep the same feel? I don't currently have the DMG, so an answer that simply states this information exists and gives a page number would be acceptable.
If it doesn't currently come pre-packaged with 5th edition, are there any major issues with implementing the incremental advance system as it stands into 5th edition? Is access to higher level features/ spells going to majorly unbalance the classes compared to each other? Are there few enough class features per level that incremental advance is unnecessary?
I'm expecting the PC's to level up every 3-4 sessions, if that changes any of the answers.