I dont know what to tell you. To me 5e Elves are a lot closer to the original Fighter/Magic-User Elves that we have had for year then Eladrin are. Obviously not exactly the same because the 5e Multi-Class system is pants but at least a nod to the traditional Elves.
Maybe you could explain why a dimensional hopping Eladrin is better then the 5e Elf?
Here are quick summaries of AD&D 1st ed, 4e and 5e High Elves:
AD&D
* +1 DEX (max 19), -1 CON
* 1600 year life expectancy
* Average height 5' for men, 4'4" for women
* Average weight 100 lb for men, 80 lb for women
* 60' infravision
* Speak Elvish, Gnome, Halfling, Goblin, Hobgoblin, Orcish, Gnoll, and Common
* 90% resistance to sleep and charm spells
* +1 to hit with long and short bows, and long and short swords
* Bonus chance to notice concealed doors and find concealed and secret doors
* Chance to surprise if unarmoured and not with anyone other than elves and halflings
4e
* +2 DEX, +2 INT
* Fey origin, live for over 300 years, and even at the end suffer few of the infirmities of old age
* Average height 5´5˝–6´1˝
* Average weight 130–180 lb.
* See normally in dim light
* Speak Elvish, Common
* Bonus to recovery from charm effects (the Sleep spell is a charm effect)
* 'Trance' rather than sleep (4 hr = 6 hr sleep)
* Longsword proficiency
* Gain a bonus skill, and gain bonuses to Arcana and History checks
* Teleport up to 25' (once used, short rest to recover)
5e
* +2 DEX, +1 INT
* 750 year life expectancy
* Tend to CG
* Height ranges from <5' to > 6' tall, slender build
* See 60' in dim light, see poorly for 60' in darkness
* Speak Common, Elvish, and one additional language
* Bonus to charm saves, immune to sleep magic
* 'Trance' rather than sleep (4 hr = 8 hr sleep)
* Proficient with longsword, shortsword, shortbow, and longbow
* Bonus to Perception checks
* Use one wizard cantrip (at will)
Neither 4e nor 5e keeps the racial ability to surprise by moving silently. 4e drops the Perception bonus (though it can be regained by taking Perception as a bonus skill), and has a shorter list of "racial" weapons.
The biggest differences are that 4e adds what is (in 5e terms) Misty Step on a short rest recovery, while 5e adds an at-will cantrip. Both are significant departures from AD&D, where elves are not guaranteed to be able to use magic at all. If there is meant to be a harking back to elven F/MUs, I don't think a second level spell on a short rest recovery is wildly different in this respect from a cantrip (which in AD&D terms is a 1st level spell) at will.