Didn't the SAR government already approve a huge underground highspeed line and terminus in Kowloon? The cost is supposed to be prohibitive but it seems to have been "an offer you cannot refuse".

Guangzhou - Wuhan should get the CRH3 that is based on the German Siemens Velaro/ICE3.

Haven't tried it in China but 1st class on the European ICE3 is rather comfortable and one can hope the Chinese version still features a real dining car with kitchen while that has been eliminated in Europe.