I see good career prospects of making it to Senior Associate here, however I don't see any other sustainable career prospects for my long term future
Haven't had enough experience to know
There's not much transparency or information on how to move up the ranks made publicly available - onus is put on individuals to speak to their supervisors to find out paths forward.
Promotion requires consistently high quality work over a long period of time, and an evidenced ability to deal with added responsibility. Promotion possibilities from lawyer are to Senior Associate (~5 years PAE), and then to Special Counsel or Partner depending on your expertise and client base.
This will simply be a matter of gaining experience and developing BD skills.
After the graduate year we have quite clear targets for billable hours and other KPIs that are taken into account with regard to career progression.