Ireland in hot pursuit of Full Member status | Ireland Cricket News | Cricinfo.com
Not happening IMO. Another country for BCCI to tour which makes no money, and another vote against it at the table. That's assuming the cricketing merits are there.
Cricketing wise, would it not make sense to have Ireland host and play away, four day games against other domestic FC sides from test nations? If they can prove that they can consistent beat them (not necessarily dominant, but they should be competitive, and win more often than not at least at home), then I think you can't deny them the ascension to the Test level. Bangladesh should have had this criteria.