Other than the apparent large cranes which have been mentioned in the past, I can't see how our project might be affected by demands for contractors/materials for HS2.
The more I think about it, it really isn't that big of a project. It's like building a large apartment block/office building, hundreds of which are built across the country. I would hazard a guess that considering limited indoor space (hospitality suites, toilets, media etc) is is largely a roofed over terrace with beer taps. I know nothing about construction, but my idiots logic tells me that building an office 15 storey might be a much more demanding task.
Stadiums are being built across Europe. We are planning to build less than a quarter of a new stadium (I say less because additional infrastructure like roads etc is already there).
Now, I can see why owners might not want to spend £100m more than they expected. Its their money. But I guess at some point something will have to be done.