The answers I have seen to similar questions, is that the borrower could state the cash out is for future investments, but with no definitive purchase in sight, there is no guarantee that the funds will actually be used for the stated purpose. The funds may just sit as borrower liquidity, or may be used for a completely different purpose. If the borrower refinanced an existing loan to increase the outstanding for the cash out, you'd have a refi, otherwise, you have an "other" purpose.
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