Yes, it does. The ETB trigger goes off (or not) based on what the creature looks like at the time it actually enters the battlefield. This means, that all replacement effects affecting the entering creature as well as all continuous effects affecting it (like Gaea's Anthem) are taken into acount.
Former Rules Advisor
"Everything's better with pirates." - Lodge
(The Gamers: Dorkness Rising)
"Any sufficiently analyzed magic is indistinguishable from science."
(Girl Genius - Fairy Tale Theater Break - Cinderella, end of volume 8)