They could skip Woolwich Dockyard ( and indeed a couple of slows will from August I believe) but the only problem is that it's growing quite quickly (about 10% increases per annum) and has a ton of housing coming within a 10 minute walking radius. Around 1000 homes. That's just Dockyard station. Woolwich Arsenal has 5000+ but the DLR and then Crossrail to aid.