Jessel is a blood elf found in Eversong Woods [40.5, 16.3], and is presumably the father of Jane and Nova (Reference to Jenova) .
He is often asleep but briefly wakes up, describing dreams involving the Azuremyst Isles, Outland, and Zul'Aman (All of them areas introduced in the Burning Crusade Expansion).
Jessel: "Was... Was it all a dream? Azuremyst, Bloodymyst, Zangarmarsh, Shadowmoon... even Zul'Aman... Jane! Jane where are you!"
Jane: "I'm right here, daddy. You've been asleep all day long. You sure must be tired!"
Jessel: "Ah, wonderful. It was all just a dream..."