That’s not exactly what I meant. I don’t believe you can effectively convert a character from RMSS to RMU without rebuilding them from level 1. DPs are significantly different as are the skills.
You can quite easily use any material from the previous editions with RMU. The skill lists might be different, but it does not matter at the gaming table if a certain NPC has a different name for the same skill. If we are speaking of combat NPC from earlier editions, they will not have paperwork for the new dodge and block actions, but it is trivial just to give the NPC some suitable number of ranks and bonuses.
The same goes with power points where RMU characters will have power points, not like core RM2 rules but more like the options in the companions...just determine a reasonable number of power points and start using the NPC. If you are using RMSS/RMFRP your NPC will have approximately the right number of PP.
Also the classes are similar but not the same. And Core Law and Spell Law beta sadly left out some core classes like the Warrior Mage and Armsmaster (I’ll never fully understand why but it doesn’t matter), along with their spell lists (another WTF). Though RMSS and RMU appear to be compatible they are vastly dissimilar games with respect to character creation.
These professions were never core professions in any previous editions. If the companions are redone for RMU, they will be included. In the meantime, you can use RMU's build profession rules to recreate them for your game.
When will a Shadow World conversion be done. It’d be interesting to see the Shadow World races and creatures and some of the NPCs done for RMU to see how they look in the new system.
You can use RMU to recreate any Shadow World races and creatures. The new edition includes full rules for building your own races and cultures. The likelihood that we get old Shadow World products restated for RMU increases a lot if you start posting samples of converting efforts on the forum. The likelihood we get new Shadow World products is also quite likely affected by the activity on the Shadow World part of the forum.