I understand that many animals like frogs need to reproduce in water, but live mostly on land after that. If I create berm/swales in the wetland will this likely increase the value of the land to wetland animals, or not?
Unless there is lack of upland habitat, for example if you live in a highly developed area, then the conversion of any wetland area to upland area would almost certainly have a net negative impact on the system as a whole. Freshwater wetlands are comparatively rare and have been disappearing rapidly. Populations of the plants and animals that depend on wetlands for part or all of their life cycle have paralleled the losses of the wetlands themselves.
If, however, you are dealing with a manmade pond or some other isolated feature, then it is possible that you could improve habitat through the construction of small islands or other topographic variations within the wetland. In theory you could create habitat specifically for certain plants, animals, or ecosystems. These would benefit different species differently - but they would also negatively impact those species that did not benefit directly from whatever habitat you create.
Finally most freshwater wetlands are highly regulated, in the USA at least, by federal, state, and even local laws. In most cases it would be difficult to get permission to "fill" any kind of natural wetland - this would include just moving the mud around the bottom to make some areas deeper and others shallower or turn them into upland areas.