#Mus
You are right, I just always imagined (and imagined that people of Morrowind imagined) Nerevar as Dunmer (or rather Chimer) in Indoril armor and with Trueflame sword, so I though that Nerevarine should use the same equipment.
For that misinformation - sorry. I must have mistaken that with whole HELLUVA mod pack.
#KINGPIX
Well not, it's not. I always though (again my imagination) that the assassin is send so you are eliminated before you become too popular (you are killer of Dagoth Ur after all, saver of Dunmer) to seize power. What's more Almalexia's madness was caused (or maybe magnified) by destruction of the Heart.
I think their madness (all three of them are not mentally stable if you ask me
) started the moment they could not "ritually bathe" in the Heart's Power; it only culminated with the destruction of Lorkhan's divine essence.
Nonetheless please advise that many people knew (or at least suspected) that the you are the Nerevarine, maybe even before you were moved from Cyrodil's prison, e.g: the Deadra Azura, Almalexia (check her dialogue lines in Tribunal), presumably the other two "gods", Uriel Septim VII (he reads the Elder Scrolls), Caius Cosades (after you give him the package from Sellus Gravius) and maybe other "V.I.P" (Divayth Fyr?, Yagrum Bagarn?, Barenziah?ecc).
Why not the one that sent the assassins of the Dark Brotherhood after you: Hlaalu Helseth, Duke of Mournhold and King of Morrowind?
What I mean is that it may be correct for him to know/assume that you are the Nereveranine (thus a threat to his power) even before the killing of Dagoth Ur or did other undeniable facts, such as wearing One-Clan-Under-Moon-and-Star and staying alive
provided that you demonstrate your "meaningness" (does this word exist?) in some other way, e.g. an increasing fame in Vvardenfell.
Thus, the existence of a mod that start Tribunal Main Quest, before the completeness, or even the beginning, of Morrowind Main Quest is lore-friendly.
As always,
imho