Hello, rechard_hk. The ASA 5512-K9 / ASA 5512-X will only require an IPS software license, as a module is no longer required (compared to the ASA 5500 models). Check this IPS data sheet for more information:
IPS for Cisco ASA 5500-X series
http://www.cisco.com/c/dam/en/us/products/collateral/security/asa-5500-series-next-generation-firewalls/data_sheet_c78_459036.pdf
Please e-mail me (adawa@cisco.com), if you have additional concerns or need more support. Kind regards and hope this helps!