Moving towards continuous data readout and transmission in the future Phase-II upgrade of the LAr Calorimeter creates a few technical challenges for the front-end electronics design as well as the back-end signal-processing needs. Particularly, the elevated pileup corruption to the data samples at an unprecedented luminosity level dictates a revision of the linear optimal filtering (LOF) approach currently deployed in the ATLAS experiment. In addition, the analog front-end (AFE) architecture needs to be revisited for supporting an ultra-high dynamic range (16-18 bits), in anticipation of any potential future evolution to a highly integrated, low cost implementation platform or technology for further power and cost reductions. In this talk, a few topics along these lines will be addressed with some preliminary results showcased in an attempt to meeting these challenges, including an extended LOF algorithm for continuous sequence detection and an AFE behavioral modeling platform.