Well, the problem is that no one else wants a civic/ corolla in 1.5L anymore, even Singapore (who used to have 1.5, how are offering 1.6/ 1.8L Corolla Altis) and last generation civic in 1.7L, when there are no profit for 1.5L, the manufacture will not make them....they can not just develop a 1.5L model for the tiny Hk and Macao market..
I've read somewhere that even Nissan Tilda might comes with 1.8L later, cause Asian market are favoring the 1.8L version, such as the Latio in Singapore (Tilda) offers the 1.8L. Probably in the near future, most small car will offer 1.8L, and when most major brand does that in HK, the market will be stable again...the only problem is...consumer will be paying a little bit more tax...