User blog comment:Dragonzzilla/Things For The Future/@comment-146.90.85.99-20130726232143
This is going to be quite long so I'm going the write the gist first and then build upon it.
Weapon arsenal upgrading and customisations - Be able to craft different types of weapons. For example, collect different resources to give to a Blacksmith or someone who makes weapons to make a bow and quiver or a blow-pipe and then be able to upgrade them later on by collecting more resources to improve aim, size of quiver/ammo belt, rate of fire, power, types of shots (different arrows and darts w/ different effects). Like how it is in Tomb Raider. However you are not able to keep both weapons equipped at the same time. Both could be used stealthily but only the blow-pipe would be able to incapacitate enemies w/o killing them or something along these lines. You would have to have a sheath of some sort crafted by a Tailor to carry different or more weapons and some animations would be exclusive to specific weapons. The weapon crafting in AC3 was a step in the right direction but badly executed IMO. ACB's Da Vinci inventions and shop quests were better (and the latter was added last minute too - adding insult to injury)
Better stealth - Be able to crouch by pressing A/X twice and then holding it on the 2nd press, be able to kill enemies in various different ways, not just suffocating them (use some of SC's animations) and having the kills/takedowns be more substance than style. Flashy moves in which you spin around for no discernible reason are really annoying sometimes and do not help in stealthy situations. Adding different outfits would be a big plus too. Ones that would make social stealth much easier (civilian outfits - one for each class - allowing access into different areas) or dyes granting you environmental perks (green clothes to blend in with shrubs better and white clothes to blend with snow or whathaveyou) but with a disadvantage (less weapons able to equipped or easier to be spotted in different environments etc).
Improved combat - Was perfect in Brotherhood, albeit a little easy but much better than later combat systems. Give enemies a health system, doesn't matter if we can't see an actual HP bar but as long as they tire out and they don't need to be hit a dozen or so times and then need to be hit by a killing blow, it will be much better. Being interrupted in a fight in AC3 made you have to kill that one person all over again as if he had recovered from all of your swings. Re-used animations aren't cool either, especially those used for completely different weapons. Double kills are almost impossible to even come by and in the off chance that you do, you only counter one person and then other guy hits you and neither of them are killed as the kill is interrupted. ACB's and AC3's double kill systems should be 'merged' together.
New skills for characters - AC2 allowed you to unlock the climb leap move. Unfortunately it was the only one you could unlock. If you could go to different people and learn different skills/abilities e.g. triple jump, new vaults, new parkour moves, learn to blend in better, pickpocket better and faster (like the mission w/ Paola in Florence). The one move I want back is being able to run up a wall and jump to the side w/o climbing on to the building itself - Almost impossible in AC3 and was perfect in AC2 - ACR.
Return of the Animus Virtual Training Sim (2013) - Brilliantly executed in Brotherhood. Revelations had one not nearly as good. AC3 had it too but could only be done once AFAIK. Bring it back and add GameLab style features e.g. only specific weapons allowed or disallowed, only specific archetypes to be killed, complete a free-running course by not being detected or something along those lines.