I did some quick recon earlier of the situation in both Brickstown and Talos Island. I found a group sneaking through a portal between a bunch of buildings in Talos, and after giving them careful study and considering their combat abilities, I attacked. They are most interesting foes. Giant floating eyeballs who are able to hold you in place while they impale you with various spiney projectiles, and slow your movement to a degree with certain optical blasts, as well. The giant floating eyeballs seem to be the most threat, with the larger ones being the strongest, obviously. The bipedal creatures with strange crystals on their heads have fairly potent combat abilities, as well, although they don't have the ability to hold you in place as they pummel you (that's why the travel in packs with the giant eyeballs). The portals are fairly resistant to damage, and have been known to transport reinforcements through when under attack. After a short battle, and defeating the pack guarding the portal, more transported through and forced me to retreat.
Beware, Heroes of Paragon, these are strong foes, for sure!
-Kinetos, level 27 Kinetic/Dark Defender, D'Haran Empire, Guardian Server