There are going to be more opportunities aren't there?
Yes, but first dibs on available tickets will go to those who registered and applied for tickets first time around.
With track cycling oversubscribed by a factor of 25 I was not surprised not to get any of those. Did Get tickets for athletics on Sunday though so barring injury I should get to see Mo run.
For those who have got tickets but don't live within striking distance, the big problem looks to be accommodation. Very few hotel rooms currently available and most of those that are are in high end expensive ones with prices well over there normal charges (although to be fair these prices are being quoted by booking companies, with the hotels own websites showing no availability). I found an upmarket B&B which opened its booking for that fortnight this morning and with the help of BT's ringback service manage to book a 5 night stay. Cheap or mid price accommodation would appear to be even rearer than track cycling tickets, so my advice would be to start looking now.