@Ana1234 - It's difficult to predict the future but I'm not sure where they could go with the helmet. It might seem unwieldy to us, but remember there is no gravity in space and very little on the moon, so it wouldn't weigh that much when they are wearing it.
They really need something that strong and stiff in order to protect against the vacuum. I don't know how they could ever get away with anything that was smaller or more elegant looking because it would be much more uncomfortable to wear.
I suspect what they will end up doing for space tourists is making an area where they can visit the moon under a dome or something that acts the same way as the helmet. But I can't imagine the helmet itself changing all that much in shape or function.