Any modern band that comes close to Mahavishnu Orchestra ?

Pryso, you were very lucky to see them live and perform their best. I read a number of interviews with McLaughlin. After a certain point in time the first Mahavishnu toured all over the world too much. They had to play the same tunes sometimes every other day or even more often, were very tired of everything including each other, virtually had no time to rehears, little time for life outside stage and studio. The characters were also not really compatible, Goodman and Hammer had their own ambitions and challenged John all the time. No wonder, the band didn't last. The second Mahavishnu was different, John himself called it true Mahavishnu Orchestra. Perhaps, but still only one great album - the Visions.

Not Mahavishnu, McLaughlin/Zavinul duo. Very good.
https://www.youtube.com/watch?v=UhHhLCl2_mI

I only listen to four fusion era albums - Bitches Brew and Pangaea by Miles Davis, and Inner Mounting Flame and Visions Of The Emerald Beyond by Mahavishnu Orchestra.
I also listen to some compositions from other albums, not many. I have a Nakamichi 682ZX deck and make compilations.
As I mentioned, tunes like Birds of Fire, Sanctuary, Inner Worlds, New York on my Mind, a few others. Life Divine with Santana is excellent too.

I'm going to have to check out "Visions" again--it didn't grab me at the time the way "Inner Mounting Flame" and "Birds of Fire" did.  I didn't care much for the live album except for one great track by Jan Hammer:  "Sister Andrea."  I do like all the live versions of the material from the first two albums that can be found and I wish I had bought the box set that includes the older material from the same performances that gave us "Between Nothingness and Eternity."  I doubt Columbia will ever release that material as a single CD even though the box set is out of print.  The used price is double what it used to cost new!
Anyway, I absolutely loved this band and I'm glad I caught the original group twice.  I just don't think there's anything that quite measures up to the excitement and the spooky, almost telepathic, communication they had. 

Visions is not admired by all Mahavishnu fans, it is quite different. It's like one composition. "Sister Andrea" is okay with me but nothing special.