peace Bro Ayman, all,
I only read up on "hagg sukot" (Feast of Tabernacles) today and it seems its core aspects are very similar to HJJ of AQ:
http://www.wildolive.co.uk/sukot.htmThe word "tabernacles" come from tents, which implies travel and likely to certain location for a festival/feast/gathering. The timing seems similar. They also remember God, utilise/celebrate the Torah, spread the message, and it is open for all nations apparently. It also talks about representatives.
Previously, I did not realise it had these other aspects.