Ann: S&P DJI Announces March 2019 Quarterly Rebalance, page-4

ok - so Google is my friend.

"Constituents are selected by a committee from Standard & Poor’s (S&P) and the Australian Securities Exchange (ASX).All companies listed on the Australian Securities Exchange (ASX) are ranked by market capitalisation. Exchange traded funds and Listed Investment Companies (LICs) are ignored. The 500 largest companies are then eligible for inclusion in the index. There’s no liquidity requirement.Rebalances are conducted annually in March. Unlike other indices, if a company is removed from the index between rebalances (due to a delisting, merger, etc.) a replacement is not added until the next rebalance date."

So by this time next year if our market cap has increased to be within the range of the 500 largest listed companies, then we will re-join the All Ords Index. So we'll need to see at least a 50% increase in share price to at least 8c - pretty achievable.