I gotta say I like the way the Orc Strongholds greet you if your an Orc and if not then you have to prove yourself. I for one would like to see them add a DLC that adds alot more of this to the game, not a DLC that has a specific quest but one that adds alot of minor new personel storylines for each race.

What about everyone else? Here's my ideas, I'd love to see everyone elses.

Khajiit

• Better sale/buy prices from Khajiit caravans
  
• New questline from caravan involving Khajiit based lore
  
• Caravans now give random quests > Reward with Gold, Lockpicks, Moonsugar and Skooma.
  
• New random event for Khajiit only > City gate guards refuse you entry periodically require high speech check or bribe. (No Intimidate)
  
• New mount > The Khajiit Senche or Senche-raht. (Khajiit species like sabercat only 2x as large, intelligent as Khajiit.) Khajiit only!

Dark Elf

• Better prices from Dark Elf merchants.
  
• Quest involving travel to Solstheim. (Help out refuges, aid them in returning to Morrowind to rebuild)

Redguards

• Some spy missions / anti spy missions to weaken the dominion. (e.g. retrieve documents from thalmor courier.)
  
• A new large cave that has a Redguard resistence base. (Missions, traders, new Redguard weapons)

Thats all I can think of at the moment.

I like the idea, but some of it's just too much to include for only one race (like adding an updated Solstheim).

Everyone would be able to go their and have a few quests but only the dark elf would get the quest to help refuges who want to return/rebuild morrowind. Also another addition could be that argonians who go their are despised for invading morrowind awhile back. seeing as how they used to be their slaves and all.

A cool lil misc queast could be in Windhelm for the Dark Elf, and the Argonian's is the like solve things the Nord did to them.
*Spoiler* Like that Jerk you beat up in Windhelm

race should be a huge part of gameplay, it should lock off things and open up new paths. i really like this idea (as long as the exclusions are well done, no reason an argonian can not find a way to, the primarily dunmer driven island, solstheim, but there is no way i would be actually welcome on said island)

One of the main racial differences I want is for Khajiit to have a unique sneaking animation that has them sneak on all fours like a real cat.

It'd also be cool if they came with a unique auto-muffle (like Argonian's waterbreathing) if they were barefoot.

Definitely, race should affect the gameplay.

on the subject of beast races, argonians should be able to fight underwater and swim faster (with the proper animaion hopefully)