There is a cracked version available to download provided by XDA. This version contains the improved and of course new keyboard. After you downloaded and installed you will not get disturbing Swype "expired" messages according to XDA.
If you are interested you can visit Forum XDA to download and install Swype 18.104.22.16812.t100 for Android
Update: the thread on XDA forum is been removed by the Administrator of the site, I don't know why it's removed.