From the look of the things, it seems only business people are only group with the capacity to buy these gold coins. Correctly said, couldn't agree more.
Noble idea, but for now you can not 100% trust the team and the process. Moreover, the timing of this move as fire fighting you might need a bit of time to see where it goes so as to give a clear judgement. In their perspective this is not to be used as a payment token but a store of value given rising inflation on daily basis.
One major disadvantage is that the coins can not be used as payment tokens which makes them very inferior in the eyes of many. The other aspects is that they are more like bonds usually issued by the state just to raise funds for for their activities.
On where they can lead to I guess nothing very significant can come out of these coins unless there is more education of it to the general public.
https://news.bitcoin.com/zimbabwe-central-bank-gold-coin-sales-to-commence-in-late-july/?s=09
Come 25th July, The sale of the gold coin's are expected to commence, where the buyer's can both make use of them local currency ( fiat ) and USD. Both locally and internationally.
The Gold coins have been named Mosi-Oa-Tunya ( The local language equivalent for the Victoria Falls ).