I've got seaberry that I'm planning to stool layer this year, bought lupine seeds to add in (maybe, most of the plants are edible and I'm not sure i want to add a poison into a space my boys/nephews graze from), I leave the clovers that come in and I have some green beans that have self seeded for a year and will hopefully continue. I might add in cowpeas and/or a dwarf sweet pea variety if space and/or time allow. 

 good ideas for me also :)