Exactly. It will be separate realm for those, who wants to experience all of the wipe related stuff - starting from scratch with everybody, progress through it.
Seasons will have unique modifiers, like no flea, or open flea, or friendly scavs, or scav war etc. Lore based seasons, unique seasonal quests and so on.
Also your seasonal character will have RPG style perks and debuffs selection before you will go in the season (you can make it really hardcore for you personally with some good bonuses).
This is only the part of seasonal character feature. We want to make it interesting.
More info will come later.