Pathway? Yes. I was stationed there for a while.
I am surprised that nobody has actually asked me what I know yet. After all, this big attack people have been planning so long, you think that inside information would be welcome.
Anyway. Large numbers of fire elves are stationed there, but there are few of significance. Apart from General Ragnaros, they are pretty much standard soldiers.
In addition, there is a permanent presence of at least three High elf captains, plus one general, representing Erathil. Each captain commands a hundred soldiers minimum, though the general will likely command a lot more than that, depending on his status at the elven courts.
Unfortunately, The general would have been replaced by now. They tend to rotate command regularly. Therefore, I can't give you any definite information on who is there. However, General Acadia seem the most likely choice, though Brynic may well be posted instead.
My advice? capture an elf, and find out the commander as soon as you can. Acadia will want to bring the fight to you. She is brash, arrogant, and an aggressive commander. She also inspires great loyalty in her troops. Brynic, if he is there, will likely hold back more, and use diversionary measures to get you to waste your time while reinforcements are called for. He is older, and would not view Pathway as a good posting. Therefore, he will take less risks. However, his personal skill with a sword is unmatched, that I know of. Should he actually enter the field of battle himself, you must avoid anyone going toe to toe with him.
Of course, another commander might have been posted, except these two. I could list many generals, but these two are the ones you need to worry about most.
So then he goes, YOU SHALL NOT PASS, and I say "I've got WINGS? I can FLY?" It was hilarious! The dwarf was tough, but the elf was delicious and they had some men and these four bite-sized guys, too. The wizard was fuming when I flew off.