I like the idea, WHW games tend to draw lots of new people into a period and manufacturers will react with new figure releases. Whilst the games might not be the golden egg for anybody they usually have solid and well working rules mechanisms. I also appreciate the fact that they are geared towards games that don't need lots of preparation so you can just meet up and an enjoyable time playing figures.
And good productions values are surely a plus, some other rules publishers could learn a lot from what WHW is doing.
Nobody will prevent people from using any other rules next to WHW products.
If they do it I'd like to see lots of nice szenarios. Ship combat would be a plus, at least some good entering actions.