Getting a new laptop tomorrow. Will I lose my dynasty? I'm saving on Dropbox so hoping that will be my saving grace. Any other suggestions?

I guess if you're saving the game into Dropbox, then you can just load the association file from Dropbox after you've installed the game on your new computer.

If not then: From the game's Save folder, copy your association folder and file onto a jump drive. Then, after you have installed DDSCB on your new computer, insert that folder and file into the game's Save folder.