When asked about the siege, Jejune had the following to say: 'we met only moderate resistance from TUF -- just one substantial stal hit. The rest were elites or poorly-matched troop types (one attack was with T2 spears, for example). For us, this was a relatively small, standard siege model. We'll look to put together more substantial ops in the weeks ahead as we ramp up.'. The 'substantial stal hit' came from Mexican Dwarf.
TUF has also exodused cities away from inbound RE and SIN sieges, first Pir Cerxes away from a siege by Salgerluk and then My Belle away from a siege by Kerg. This could show that after months of fighting, TUF's forces are wearing thin.
TUF has fought back against RE recently with a siege on Knight of Ancient's city of 'Vgrumkik' by kaven at 11:31 today. The siege is on a plains square, however due to the remote location if the siege, it is likely that no forces will arrive in time to break it.
UPDATE: The siege was broken on the 7th July with the help of SIN forces. Since the siege was broken, Knight of Ancients has left RE and joined WILD.