Heroes of Might & Magic III: Horn of the Abyss

The main thing is that these spells should have situations where they can be used more than once a year. ;)

Will it be possible to buy a bone golem in the Castle or only raise it? And will it still be possible to recruit 7 creatures in the Castles?
Are there any plans for new composite artifacts? Will there be changes to the old heroes' skills and specializations? Will the bonuses from skills and specializations change?

And can I get links to the city websites? I've only found the Cove so far.