Really? When did Allan say there was 3 NELs?
Hehe, if Im not wrong, he did say at the start of the race or when Ed and Monica were saved in leg 1.
If not, based on the weekly pitstop competition they are holding at AXN, they have 13 weekly prizes in total, meaning it has 13 weekly episodes(so far there is 8 including the super-leg). And the last entry is 14 Feburary 2008, which is the final leg. Meaning there is 5 legs left(3 more eliminations) and there might still be one more non-elimination leg or another To Be Continued leg(which I think it is).
Wikipedia also confirms there are 13 episodes.