Hey there.
Current legion task are for the version 3.0. Since those should get fixed, im suggesting this changes;
Curent quests based per Legion Level
Legion level 5 tasks
Enter Nochsana Training Camp and kill Nochsana 6 times.
Enter Aetherogenetics Lab and kill RM-78c 12 times
Enter Raksang and kill Rakshang 42 times
Legion level 6 tasks
Run Fire Temple and kill Kromede 12 times
Run upper Udas Temple and kill Nexus 24 times
Run Argent Manor and kill Zadra Spellweaver and kill him 84 times
Legion level 7 tasks
Enter Adma Stronghold and kill Lord Lanmark 24 times
Enter lower Udas Temple and kill Debilkarim the Maker 48 times
Enter Muada’s Trencher and kill Empress Muada 168 times
Legion level 8 task
PvE quests:
Run Draupnir Cave and kill Bakarma 12 times
Run Beshmundir Temple and kill Stormwing 24 times
Run Rentus Base and kill Brigade General Vasharti 168 times
PvP quests:
Kill 5 Asmodians in the Abyss, 84 times
Kill 5 asmodians in Tiamaranta, 84 times
Kill 5 asmodias, 84 times (not sure where, could you just check? If is not a 3.0 map, change it for it).
PvP Siege quests:
Take one of the lower forts in the Abyss, 24 times
Take one of the upper forts in the Abyss, 24 times
Take Divine Fortress, 24 times
Take one of the forts from Inggison, 48 times
Take one of the forts in Tiamaranta, 96 times
Once your legion hits lvl 8, all quests become repeatable
So what extra rewards will you get from this new tasks?
PvE rewards:
Grade 1: 6 Mithril medals
Grade 2: 3 Greater Ancient Goblet
Grade 3: 5 Attack +5 manastones
Grade 4: 9 Legion coins
PvP rewards:
Grade 1: 10 Mithril medals
Grade 2: 4 Major Ancient Crowns
Grade 3: 4 Greater Ancient Crowns
Grade 4: 17 Legion coins
PvP Siege rewards:
Grade 1: Elite Grade Sword(looks like a skin)
Grade 2: 10 Mithril Medals
Grade 3: 6 Major Ancient Goblets
Grade 4: 34 Legion coins
My suggestion changes;
Level 5; Change "Enter Raksang and kill Rakshang 42 times" for "Enter Haramel and kill Hamerun the Bleeder 42 times"
Level 6: Change "Run Argent Manor and kill Zadra Spellweaver and kill him 84 times" for "Enter Taloc's Hollow and kill Celestius 24 times"
Level 7: Change "Enter Muada’s Trencher and kill Empress Muada 168 times" for "Enter Kromede's Trial and kill Kaliga the Unjust (hard mode) 36 times"
Level 8: Change "Run Rentus Base and kill Brigade General Vasharti 168 times" for "Run Beshmundir Temple and kill Flarestorm 48 times"
Level 8: Change "Take Divine fortress 24 times" for another fortress / task
Level 8: Change "Take one of the forts in Tiamaranta" for another fortress / task
Level 8: Change "Kill asmodians/Elyo in Tiamaranta" for another zone (could be Heiron/Eltnen if rifts are 55)
Repeatables after completing everything;
Change: Mithril Medals for Platinum Medals.
Change: x5 Attack+5 Manastone for x5 https://aioncodex.com/en/item/188053460/ (remove Bundle of regenerating Manastones from it, leave the rest since are the most usefull ones for overall builds).
Cheers.