What you're doing is that you start JBoss with remote debugging enabled. When you do that you need to connect a remote debugger to your JBoss instance and then you will see JBoss continue booting...
change your suspend=y to suspend=n. Otherwise the JVM will wait for your debugger to connect before proceeding with the programm execution.
Please modify java_opts as follows
set JAVA_OPTS=%JAVA_OPTS% -Xbootclasspath/p:%LM%\lib\vbjorb.jar
-Xdebug -Xnoagent -Djava.compiler=NONE
-Xbootclasspath can be used if you need to add any jar to bootclasspath its optional.