The org.icefaces.impl.component.UISeriesBase class was ported from IF1.8.x and is very complex, manipulating the DOM directly...which causes issues in state saving of components. Since ace:dataTable has successfully been implemented using UIData and compliant with jsf 2.2 implementations, it should be the standard for all components.
ace:List should be the first component to be migrated away from UISeriesBase. current source (rev 51373) ListMeta class :-
   extendsClass = "org.icefaces.impl.component.UISeriesBase",

When extending (from Meta Class)
 extendsClass = "javax.faces.component.UIData",

 preliminary findings show that this component needs work to have children of UIInput and UICommand where the submit can be done using ace:ajax and listeners fired.
<h:commandLink> and <h:commandButton> as children do submit a request with <f:ajax/>, but actionListeners do not fire when children of ace:list. ace:pushButton and <ace:linkButton> do not submit when using <ace:ajax/> when children of an <ace:list>
Current QA tests do not have any tests for ace:list regarding children of UICommand and UIInput with ace:ajax or f:ajax. This also should be rectified.