My read of the MAA process is that a second clock stop's list of issues would only follow up on any deficiencies in a company's response to the first clock stop's list of questions. In other words, CHMP will not be introducing new issues during any second clock stop.
Good decision making processes narrow down disputes. For example, this is how judges handle disputes.
That means that Missling and Anavex are unlikely to be surprised by the content of a second clock stop, and at this point in the MAA process they have a good idea of its ultimate outcome. And that means that the possibility of a capital raise now clearly diminishes the chances of an MAA withdrawal, for the legal reason I gave earlier.