New investor = confirmation that there isn't sufficient campaign money left to complete the Wave.
... and an investor is going to expect a return on their investment. Income from the Wave etc is long gone so unless the investor is in it for the karma and not the money, Wave etc are imho doomed. Unless of course, the Wave is so awesome it could take the dap market by storm and sell a ton of units to new customers... you know, because people really trust the LH Labs brand and there are no good alternate daps out there these days :-/.