I'd heard a lot of talk around Worldcoin for a while but it seems to have been steadily declining in value for the last month. Is there any particular reason for this or are people just losing interest?
Price relative to BTC has been declining a bit, but it's stayed around ~$.48-.50 for the last while. Also, people are definitely not losing interest as WDC is consistently in the top 10 traded coins in terms of USD volume, just check coinmarketcap. WDC is here for the long haul and there are big things coming, and I for one am very excited to see what the next few months hold for WDC

The upcoming months will be tremendous with WDC.
I have been buying like crazy as the relative value is declining. 0.1 BTC is the long term equilibrium-price. As long as the price is under that relation, there is an opportunity to have leveraged returns on investment.
This spring I am expecting the next leap of magnitude.
My goals in terms of BTC (who cares USD):
May 1: 0.005 BTC
August 1: 0.05 BTC
December 1: 0.08 BTC
Jan 1 (2015): 0.101 BTC
Yup, the price will overshoot temporarily. It is pure economics. Everybody who has studied in university the economics of money theory knows the forex shoots always over in uptrends and shoots under in downtrend. This is called J-curve.
There will be excitement as the 0.1 BTC is hit and therefore the sellers are not interested in selling (they hope it will go even higher) and the buyers are throwing their money to WDC which creates scarcity to the markets. This is exactly the riight exit point for bulls so that they can go back in in 0.095 levels and gain ~ 5 % which is a good gain (the real annual growth of world's economy in long time series is aroun 2.2 %).