I actually liked HoMM V a lot. Not as much as 3 which was the best of the series, but definitely 1 million times better than IV.
My hopes for 6 is just have HoMM 3 with a new story, new graphics, different units, new spells, etc… but gameplay (and AI) just like HoMM 3. I definitely don't want the 'hero is the army' approach they had with HoMM 4. And definitely don't want them to reduce the resources, it is an integral part of the game. In fact, I would focus even more on that aspect, have kingdoms rely more on specific type of elements like it was in HoMM2 (Barbarians wood, Knights iron, etc.).
My hopes for 6 is just have HoMM 3 with a new story, new graphics, different units, new spells, etc… but gameplay (and AI) just like HoMM 3. I definitely don't want the 'hero is the army' approach they had with HoMM 4. And definitely don't want them to reduce the resources, it is an integral part of the game. In fact, I would focus even more on that aspect, have kingdoms rely more on specific type of elements like it was in HoMM2 (Barbarians wood, Knights iron, etc.).