According to news report on Vísir.is (Icelandic), it appears that Bárðarbunga volcano is continuing to inflate at the same rate as it has been doing since the eruption ended in Holuhraun in the end of February 2015. Gas measurements from cauldrons that formed on the caldera rim during the eruption in 2014 show that gas output from Bárðarbunga volcano have not dropped during the last year and continue to be high. The glacier drop that formed during the eruption is now almost full of new glacier and snow from last winter. Nothing suggest that water has been collecting at the caldera bottom during the last two years.
The research trip to Bárðarbunga volcano was taken during the days of 3 – 10th of June. A new seismometer was also installed on the caldera rim. I don’t know if it’s a SIL station or not. If it is, it is going to appear soon on Iceland Met Office website.