Finally heard back!
"Many thanks for your application for the position of Graduate - Global Banking & Markets - Global Research - Europe - UK - London and your interest in working with us at HSBC.
We are very interested in your profile and wanted to confirm that you have met the online testing cognitive thresholds that we have in place for both the On-line Immersive Assessment and the Job Simulator.
As our hiring works on a rolling basis for all programmes, there may now be a short delay whilst we review your application in full and consider this for short-listing to our Assessment Centres. Please note, we are running Assessment Centres on a weekly basis for most programmes and expect these to continue until early in the new year, unless the role is filled within that timeframe. If this occurs, we will provide you with a timely update and advise you of other suitable vacancies you may wish to consider, where applicable."
Hopefully this will reassure some of you guys who applied later on - it may be a while before you hear back just due to when you applied!