Dear SMSH, you will get your intimation a mo before than your BF date!
Off all the discussion & colorful opinions here, it is safely said that 'Congrats to all those who had received updated docs request in Feb '13 because their files are out of the mandatory waiting que & 18 mo no-more-CSI intimation is a standard reply, not a binding that you will not get MR before!'
Over a good note, my 3 colleagues, 1 (NOC 3112) from India & two (0213) from Pak, based in Kuwait and Dubai, now received MR along with PCC from LVO without 18 mo intimation, confirming that LVO is also issuing medicals too in addition to UDR. Their timelines are almost similar to many here; CIO App in Mar 2010, LVO App in Sept 2010 & 6-12mo wait letter in Apr 2012. Here the Qs is, why they got MR & others UDR only? Probably (1) there files are adequately planned with good docs (2) VO satisfied fully & likely less BC or quality checks (3) Good timings when SELDEC was completed last year visa quota was exhausted, hence now they got after getting out of mandatory que etc.
Though applicants say eCAS is mess (if not working then raise it to CIC tech support, not LVO), I'd say that's the only interface b/w applicants & Visa offices before CAIPS/GCMS notes. I again suggest, have a look at your GCMS, read the notes carefully and try to match it with your eCAS status too. Esp any additional activity is reflected there such as 'We have reviewed your application and started processing on xx date (reflects passing of MI), 'We started processing your application on XX date' indicates that your apps is our of wait que and being worked upon or 'Medical results received' say that you have passed the medical, reflect important mile stones of your application. So pay attention to that too!