Although it's not fair to say, HKDL just like a stepping stone to enter a new potential market in China. And every discouraging news about and geographic and financial restrictions on HKDL, seems they've given it up and look for another land. Expansion of HKDL is only petty compromise. Well, good luck to HKDL!
Why Shanghai? It's definitely the best choice for another DL in China.