I'm posting this in the nova forum for follow-ups. A new bright transient was discovered in Aquila by K. Itagaki on May 30, and posted to CBET's Transient Objects Confirmation Page. I haven't seen spectral confirmation yet, however Taichi Kato noted on VSNET that based on photometric colors and a large proper motion this may be a WZ Sge-type dwarf nova.
Position as measured by Enrique de Miguel is (J2000): 19:15:02.047 , +07:19:46.78
Spectroscopic followups are encouraged, as are time-series observations in case superhumps appear.