Possibly low, though the WK is pretty nasty and should be pretty effective. If there is any problem with the list it's that the mix of allies is diluting your strengths. Also, you have two expensive powerhouses with WK and Gothmog, and you might be better off rounding out with lots more orcs.
Gothmog and his 12 warg riders with TS are pretty expensive. In theory I'd say that's the right way to use Gothmog: he's not really set up to go toe to toe with Good heroes (he only matches Faramir in Fight, but is much more expensive), rather his purpose is denial and counter, and speedy troops are the best thing for that. However, the heroic action range of effect means it's unlikely he can affect them all, which means some will get left behind. Cavalry without a leader are as effective as your ability to win priority, otherwise they might as well be foot troops (okay, a bit of overstatement, but still...). With warg riders the 5+ shooting makes throwing spears nearly useless. So I'd reduce the number of warg riders to 6 or 8, and probably drop the TS.
The Easterling contingent could be tweaked: you're adding a banner, but for just a few more points you could drop the banner and upgrade the captain to Amdur who *is* a banner. This would also give you your only F6 hero (though I guess the fell beast can fill this role). You have no elite troops, so it might be useful if the Easterling warriors were upgraded to Black Dragons.
The Harad contingent feels a bit lost. If you're going to include them, including the Betrayer would make them more effective. Otherwise, unless you're fielding a much larger Harad contingent with lots more bows, I think you'd be better off with more Easterlings or more Orcs.
I was lucky over Labour Day weekend to get in three games, since my son showed a renewed interest. We played 1000 point games, and my second Gondor list had 60 models, but still included Boromir, Faramir, 6 knights, a full warband of fountain guard w/shield, and a full warband of rangers (6 warbands total with Damrod solo). The rest were WoMT. I have a feeling it would have chewed up your list, though I'm not sure about the effect of the WK. Then again, I could end up rolling as badly as I did in the first game, where in the first turn, my entire of line of spear-supported fountain guard lost *every @$&%&% fight* to a line of solo goblins, and didn't get a single kill until turn 4...
