TBF it could be like the Earl situation, the only difference is a larger number of shares have changed hands - it may well not be, but this guy isn't obliged to pump his own money into the club or build us a ground. We simply don't know what the plans are at this point, there may be opportunity there may just be a status quo - we just don't know.
In regard to Earl, many forget that when he originally came we spent a lot of tranfers quite soon after, Yakubu, Baines, Manny Fernandes bid - not that he put money into the club, but being a shareholder meant that we could tap up better credit.
It's possible, this guy might invest nothing, but may enable us to access better credit I.e. The ability to borrow for a new ground.