I have a site up now using one theme. There's a few days worth of content on it and a few people visiting it.
I'd like to use a different theme. I know how to switch from one theme to another -- not very complicated even for a beginner like me.
However, there will be quite a bit of modification required with the new theme, not to mention a learning curve -- the new theme has more features than the existing one.
I'm assuming that if I activate the new theme, it will be immediately visible on my site. That would not be good, because it'll be a mess. Is there any way to work on the new theme while leaving the old theme up and functioning and then when the new theme is ready, just switch? I don't really see how this can be done because I'd need all the content from the old theme. Is this possible?
Or, to do this, would I have to put up some kind of landing page that says that there's design maintenance going on and we'll be back up soon? Which is kind of a drag for the existing visitors.
I'd appreciate hearing what the best strategy is for making this kind of switch.