The hope here is that BTC become a reserve currency that you store away and only move rarely used by high net worth addresses. The biggest hurdle for BTC is that it competes with BCH for the same mining hashpower. Unless BTC also code in an EDA it is always at risk from being out competed by BCH for hashing power. To be a reserve currency it implies having the best security of all crypto which means the most hashing power. BTC has this now but it is always at risk of losing it. This is the reason Core supporters are afraid of BCH because it is a threat. BCH hashrate is stable now at 2PH up from 1PH. Keep an eye on that ratio.

As to use as currency. The more the usage the higher the transactions the more adopters of the currency. Conversely if you are going the other way the metrics go in the opposite direction.

Bitcoin is not gold. It does not have that recognition. Everybody on the planet knows what gold is. It has intrinsic value. You wear it to display your wealth ( in some societies ). You can't do that with Bitcoin. In fact you do not want to tell anybody how much bitcoins you have. Value must come from this overwhelming widespread perception of value by everybody which can only come from widespread use. At this moment if BCH gains widespread use then it will become the currency and the store of value.

Taking BTC as the store of value at this stage means that we use it to 3 decimal places. You want to take the unit of account down to a single satoshi and still be able to move that satoshi.