I thought you would be interested in what is planned in the next few MultiBit releases.
The current plan (up to probably about Christmas) is:
Version 0.5.14 Point release - basically a refresh and update.
(There may be additional point releases depending on any required bug fixes etc).
Version 0.6 Conversion of the UI over to Java FX. This a different UI library compared to what is being used now. This should drag the GUI into the 21st century rather than the 'late 90s' it is at at the moment. :-)
In parallel to this Gary and myself will be working on the trezorj library, an open source Java project that anyone can use to talk to the Trezor. Gary has been making good progress on this - he got our Raspberry Pi Trezor shield actually signing a transaction he sent over TCPIP from trezorj at the weekend.
If you follow the bitcoinj mailing list, you will have noticed that there is now activity based around Matija Mazi's HD code (that is in bitcoinj 0.10). We are taking a close interest in this as we will need it for then next release which is . . .
Version 0.7This will include Trezor support (which also, necessarily, will include hierarchical deterministic wallet support).
To keep everything organised I have set up the MultiBit github.com issue database with:
+ milestones for each of these versions
+ assigned various issues to the relevant milestones.
+ they will then all get worked on in separate branches and merged into the code in the usual fashion.
The issue database is here:
https://github.com/jim618/multibit/issues?state=openI have also started marking the support issues people raise with the a yellow 'support' label so that they are a bit more visible.